diff --git a/doc/qtcreator/src/editors/creator-code-refactoring.qdoc b/doc/qtcreator/src/editors/creator-code-refactoring.qdoc
index 37f45c5b259..285ab394799 100644
--- a/doc/qtcreator/src/editors/creator-code-refactoring.qdoc
+++ b/doc/qtcreator/src/editors/creator-code-refactoring.qdoc
@@ -3,7 +3,7 @@
 
 /*!
     \page creator-editor-refactoring.html
-    \previouspage creator-editor-locator.html
+    \previouspage creator-jump-to-the-code.html
     \nextpage creator-editor-quick-fixes.html
 
     \title Refactoring
diff --git a/doc/qtcreator/src/editors/creator-finding.qdoc b/doc/qtcreator/src/editors/creator-finding.qdoc
index 71bdd340085..d2eda6bd227 100644
--- a/doc/qtcreator/src/editors/creator-finding.qdoc
+++ b/doc/qtcreator/src/editors/creator-finding.qdoc
@@ -37,6 +37,14 @@
             through projects, files, classes, functions, documentation and
             file systems.
 
+        \li \l{Jump to the Code}
+
+            Jump to the code for a specific component directly from
+            the \uicontrol {2D} view or \uicontrol {Navigator} view.
+            You can also jump to the code of a particular
+            \uicontrol {State} or \uicontrol {Connection} from their
+            corresponding views.
+
     \endlist
 
 */
diff --git a/doc/qtcreator/src/editors/creator-jump-to-the-code.qdoc b/doc/qtcreator/src/editors/creator-jump-to-the-code.qdoc
new file mode 100644
index 00000000000..d5a83080bfd
--- /dev/null
+++ b/doc/qtcreator/src/editors/creator-jump-to-the-code.qdoc
@@ -0,0 +1,66 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
+
+/*!
+    \previouspage creator-editor-locator.html
+    \page creator-jump-to-the-code.html
+    \nextpage creator-editor-refactoring.html
+
+    \title Jump to the Code
+
+    Jump to the code is a feature that gives you instant access to a particular
+    part of the code. It takes you to the \uicontrol {Code} view location of a particular
+    component, \uicontrol {State}, or \uicontrol {Connection}.
+
+    You can jump to the code from:
+    \list
+        \li \uicontrol {Navigator} view
+        \li \uicontrol {2D} view
+        \li \uicontrol {States} view
+        \li \uicontrol {Connections} view
+    \endlist
+
+    \section1 Jump to the Code from the Navigator View
+
+    \list 1
+        \li Right-click on a component in the \uicontrol {Navigator} view.
+        \li Select \uicontrol {Jump to the Code}.
+    \endlist
+
+    \image jump-to-the-code-from-navigator-view.webp
+
+    \section1 Jump to the Code from the 2D View
+
+    \list 1
+        \li Right-click on a component in the \uicontrol {2D} view.
+        \li Select \uicontrol {Jump to the Code}.
+    \endlist
+
+    \image jump-to-the-code-from-2D-view.webp
+
+    \note Alternatively, you can select the component in the \uicontrol {Navigator} view
+    or in the \uicontrol {2D} view and press \key {F4}. That takes you to the code
+    location in the \uicontrol {Code} view.
+
+    \section1 Jump to the Code from the States View
+
+    \list 1
+        \li Locate the state you want to check in the \uicontrol {States} view.
+        \li Select \inlineimage icons/browse-button.png
+            to open additional options.
+        \li Select \uicontrol {Jump to the Code}.
+    \endlist
+
+    \image jump-to-the-code-from-state-view.webp
+
+    \section1 Jump to the Code from the Connections View
+
+    \list 1
+        \li Select a connection in the \uicontrol {Connections} view.
+        \li Select \inlineimage icons/jump-to-code-16px.png
+            to jump to the code segment related to the connection.
+    \endlist
+
+    \image jump-to-the-code-from-connections-view.webp
+
+*/
diff --git a/doc/qtcreator/src/editors/creator-locator.qdoc b/doc/qtcreator/src/editors/creator-locator.qdoc
index e9a9ad59c98..53477670091 100644
--- a/doc/qtcreator/src/editors/creator-locator.qdoc
+++ b/doc/qtcreator/src/editors/creator-locator.qdoc
@@ -4,7 +4,7 @@
 /*!
     \previouspage creator-editor-finding.html
     \page creator-editor-locator.html
-    \nextpage creator-editor-refactoring.html
+    \nextpage creator-jump-to-the-code.html
 
     \title Searching with the Locator
 
diff --git a/doc/qtdesignstudio/examples/doc/FireParticles.qdoc b/doc/qtdesignstudio/examples/doc/FireParticles.qdoc
index f3603f08441..d198fbdf965 100644
--- a/doc/qtdesignstudio/examples/doc/FireParticles.qdoc
+++ b/doc/qtdesignstudio/examples/doc/FireParticles.qdoc
@@ -31,7 +31,7 @@
       \li \e fire-color-table.png
     \endlist
 
-    You can download the assets from
+    Download the assets
     \l{https://git.qt.io/public-demos/qtdesign-studio/-/tree/master/tutorial%20projects/fire-particles/FireParticles/content/images}
     {here}.
 
@@ -48,14 +48,14 @@
       \li In the \uicontrol Presets section, select \uicontrol General >
       \uicontrol {3D}.
       \li In the \uicontrol Details section, set the name to \e FireParticles
-      and select the folder where you want to save the project.
+      , and select the folder where you want to save the project.
       \li Select \uicontrol {Create}.
     \endlist
 
-    Next, remove unwanted default components from the project:
+    Next, remove any unwanted default components from the project:
 
     \list 1
-      \li In \uicontrol {Navigator}, select \e Text and select the \key Delete
+      \li In the \uicontrol {Navigator} view, select \e Text and then select the \key Delete
       key.
       \li In the same way, delete \e {cubeModel}.
     \endlist
@@ -63,11 +63,10 @@
     For a better visual effect, set the background color to black:
 
     \list
-      \li In \uicontrol {Navigator}, select \e Rectangle and in
+      \li In the \uicontrol {Navigator} view, select \e Rectangle and in
       \uicontrol {Properties}, set \uicontrol {Fill Color} to #000000.
     \endlist
 
-
     \section2 Adding a Particle System to Your Scene
 
     To add a particle system, you first need to import the QtQuick3D.Particles3D
@@ -79,16 +78,19 @@
       \li Find QtQuick3D.Particles3D, and select it to add it to your project.
     \endlist
 
+    \image fire-particles-components.png
+
     In this project, you use an animated sprite to simulate a fire. For
-    this, use the Animated Sprite particle system template:
+    this, use the \uicontrol {Animated Sprite} particle system template:
 
     \list
       \li From \uicontrol Components >
       \uicontrol{Qt Quick 3D Particle System Templates} drag an
-      \uicontrol {Animated Sprite} component to the \uicontrol{3D} view. You can
-      also drag it to \e scene in \uicontrol {Navigator}.
+      \uicontrol {Animated Sprite} component [1] to \e scene in \uicontrol {Navigator}.
     \endlist
 
+    \image fire-particles-animated-sprite-comp.png
+
     \image fire-particles-navigator.png
 
     You now have the particle system in place. To preview it, select
@@ -97,26 +99,33 @@
 
     \section2 Adding Sprites and Sprite Animations
 
-    First, import the sprite to use for the fire:
+    In this project, you use a spritesheet with 3 sprites.
+    A spritesheet is a single image file that contains multiple sprites arranged
+    in a grid. You use these sprites to create a looping animation to add variation
+    to the movement of the flames.
+
+    First, import the spritesheet you downloaded in the beginning of this tutorial
+    (\e{fire-sprites.png}) to use for the fire:
 
     \list 1
-      \li In \uicontrol {Assets}, select \inlineimage icons/plus.png
+      \li In the \uicontrol {Assets} view, select \inlineimage icons/plus.png
       .
-      \li Select \e {fire-sprites.png}.
+      \li In the \uicontrol {Add Assets} dialog, find and select \e {fire-sprites.png}.
     \endlist
 
     \image fire-particles-assets.png
 
-    Next, add the sprite to the particle system and create the animation:
+    Next, add the spritesheet to the particle system, and create the animation:
 
     \list 1
-      \li From \uicontrol{Assets}, drag \e {fire-sprites.png} to
-      \e animatedTexture in \uicontrol {Navigator}.
-      \li In \uicontrol{Navigator}, select \e{animatedSequence} and in
-      \uicontrol {Properties}, set:
+      \li From the \uicontrol{Assets} view, drag \e {fire-sprites.png} to
+      \e animatedTexture in the \uicontrol {Navigator} view.
+      \image fire-particles-drag-sprites.png
+      \li In the \uicontrol{Navigator} view, select \e{animatedSequence} and in
+      the \uicontrol {Properties} view, set:
         \list
           \li \uicontrol{Frame Count} to 3.
-          There are 3 sprites in \e {fire-sprites.png} so you want to
+          There are three sprites in \e {fire-sprites.png} so you want to
           divide the image into 3 different sprites for this animation.
           \li \uicontrol Interpolate to true. This makes the animation between
           the sprites smooth.
@@ -132,21 +141,25 @@
     change the color of a single sprite during its life span. In this
     project, you use a gradient color table ranging from yellow to dark orange.
     This results in the sprites being yellow when they are emitted and dark
-    orange at the end of the life span.
+    orange at the end of their life span.
 
     To set the color table:
+
     \list 1
-      \li Import \e{fire-color-table.png} to your project.
-      \li From \uicontrol{Components}, drag a \uicontrol Texture to
+      \li Go to the \uicontrol {Asstes} view and import \e{fire-color-table.png} to your project.
+      \li From the \uicontrol{Components} view, drag a \uicontrol Texture [1] to
       \e animatedSpriteParticle in \uicontrol{Navigator}.
+      \image fire-particles-drag-texture.png
       \li Rename the texture to \e {fireColorTable}.
-      \li In \uicontrol {Navigator}, select \e {fireColorTable} and  in
-      \uicontrol {Properties}, set \uicontrol Source to
+      \li In the \uicontrol {Navigator} view, select \e {fireColorTable} and in
+      the \uicontrol {Properties} view, set \uicontrol Source to
       \e{fire-color-table.png}.
-      \li In \uicontrol {Navigator}, select \e {animatedSpriteParticle} and:
+      \li In the \uicontrol {Navigator} view, select \e {animatedSpriteParticle} and in the
+      \uicontrol Properties view:
         \list
-          \li Ensure that \uicontrol Sprite is set to \e {animatedTexture}.
-          \li Set \uicontrol {Particle Scale} to 5.
+          \li Ensure that \uicontrol Sprite is set to \e {animatedTexture}. This sets which image
+          to emit from the particle emitter, which in this case is the spritesheet added earlier.
+          \li Set \uicontrol {Particle Scale} to 5 to adjust the size of the flames.
           \li Set \uicontrol {Color Table} to \e{fireColorTable}.
         \endlist
     \endlist
@@ -158,48 +171,71 @@
     The next step is to adjust the particle emitter properties:
 
     \list 1
-      \li In \uicontrol{Navigator}, select \e animatedSpriteEmitter and in
-      \uicontrol {Properties}, set:
+      \li First, in the \uicontrol{Navigator} view, select \e animatedSpriteEmitter and then, in
+      the \uicontrol {Properties} view, set:
       \list
-        \li \uicontrol {Emit Rate} to 300.
-        \li \uicontrol {Life Span} to 2500.
-        \li \uicontrol {Life Span Variation} to 100.
-        \li \uicontrol {Particle End Scale} to 1,50.
+        \li \uicontrol {Emit Rate} to 300 to emit 300 particles per second.
+        \li \uicontrol {Life Span} to 2500 to set the life span of each particle to
+        2500 milliseconds (2.5 seconds).
+        \li \uicontrol {Life Span Variation} to 100 to set variation to the particle
+        life spans. The life span of each particle is now between 2.4 and 2.6 seconds to make
+        the fire look more realistic.
+        \li \uicontrol {Particle End Scale} to 1.50. When a particle is emitted, its
+        scale is 1.00 by default. By the end of its life span, it will grow to a scale of 1.50.
       \endlist
-      This sets the emitter to emit 300 particles per second. The life span of
-      each particle is ranging from 2.4 to 2.6 seconds. The size of each
-      particle is increasing slightly throughout its life span.
-      \li In \uicontrol{Navigator}, select \e animatedSpriteParticle and in
-      \uicontrol {Properties}, set:
+
+      \image fire-particles-particle-emitter.png
+
+      \li First, in the \uicontrol{Navigator} view, select \e animatedSpriteParticle and then, in
+      the \uicontrol {Properties} view, set:
       \list
-        \li \uicontrol {Blend Mode} to Screen.
-        \li \uicontrol {Max Amount} to 1000.
-        \li \uicontrol {Color Variation} > \uicontrol W to 0,50. This adds
+        \li \uicontrol {Blend Mode} to Screen to blend the fire nicely with the background.
+        \li \uicontrol {Max Amount} to 1000 to define the maximum amount of particles visible at the
+        same time. Setting a higher number allocates more memory.
+        \li \uicontrol {Color Variation} > \uicontrol W to 0.50. This adds
         randomness to the opacity of the sprites.
       \endlist
-      \li In \uicontrol{Navigator}, select \e animatedSpriteDirection and in
-      \uicontrol {Properties}, set:
+
+      \image fire-particle-sprite-particle.png
+
+      \li The \e animatedSpriteDirection component defines the direction and the velocity of
+      the particles emitted from the particle emitter. In this tutorial, you want the particles to
+      go straight up with a small variation.
+
+      In the \uicontrol{Navigator} view, select \e animatedSpriteDirection and in the
+      \uicontrol {Properties} view, set:
       \list
-        \li \uicontrol Direction > \uicontrol Y to 20.
-        \li \uicontrol {Direction Variation} > \uicontrol X to 3.
-        \li \uicontrol {Direction Variation} > \uicontrol Y to 10.
+        \li \uicontrol Direction  > \uicontrol X to 0 and \uicontrol Direction > \uicontrol Y
+        to 20. This makes the particles go straight up (along the Y axis) at the velocity of 20.
+        \li \uicontrol {Direction Variation} > \uicontrol X to 3. This adds small variation along
+        the X axis, making the flames a little bit wider.
+        \li \uicontrol {Direction Variation} > \uicontrol Y to 10. This adds variation to the
+        velocity of the particles along the Y axis. Because this makes some particles slower,
+        the flames appears thicker in the lower part.
       \endlist
-      This makes the particles go straight up with a small amount of randomness
-      to the direction.
+
+      \image fire-particles-direction.png
+
     \endlist
 
-    \section1 Previewing
+    \section1 Running the Project
 
-    Now, the fire effect is done. Before you preview it, adjust the camera:
+    Now, the fire effect is ready. Before you run it, position the camera to show the effect
+    from a suitable perspective:
     \list 1
-      \li In \uicontrol {Navigator}, select \e sceneCamera and in
-      \uicontrol {Properties}, set:
+      \li In the \uicontrol {Navigator} view, select \e sceneCamera and in the
+      \uicontrol {Properties} view, set:
       \list
         \li \uicontrol {Field of View} to 20.
         \li \uicontrol {Translation} > \uicontrol Y to 35.
+        \li \uicontrol {Translation} > \uicontrol Z to 350.
       \endlist
     \endlist
 
-    Now, preview the fire effect by selecting \key Alt + \key{P}.
+    \image fire-particles-camera.png
+
+    Now, run the project by selecting \key Ctrl + \key{R} or the
+    \inlineimage icons/run_project.png
+    button in the top toolbar.
 
 */
diff --git a/doc/qtdesignstudio/examples/doc/images/fire-particle-sprite-particle.png b/doc/qtdesignstudio/examples/doc/images/fire-particle-sprite-particle.png
new file mode 100644
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new file mode 100644
index 00000000000..e6e7b93baf9
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diff --git a/doc/qtdesignstudio/examples/doc/images/fire-particles-camera.png b/doc/qtdesignstudio/examples/doc/images/fire-particles-camera.png
new file mode 100644
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diff --git a/doc/qtdesignstudio/examples/doc/images/fire-particles-components.png b/doc/qtdesignstudio/examples/doc/images/fire-particles-components.png
new file mode 100644
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diff --git a/doc/qtdesignstudio/examples/doc/images/fire-particles-direction.png b/doc/qtdesignstudio/examples/doc/images/fire-particles-direction.png
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diff --git a/doc/qtdesignstudio/examples/doc/images/fire-particles-drag-sprites.png b/doc/qtdesignstudio/examples/doc/images/fire-particles-drag-sprites.png
new file mode 100644
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diff --git a/doc/qtdesignstudio/examples/doc/images/fire-particles-drag-texture.png b/doc/qtdesignstudio/examples/doc/images/fire-particles-drag-texture.png
new file mode 100644
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diff --git a/doc/qtdesignstudio/examples/doc/images/fire-particles-navigator.png b/doc/qtdesignstudio/examples/doc/images/fire-particles-navigator.png
index 759cca99909..fe99fb2e188 100644
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diff --git a/doc/qtdesignstudio/examples/doc/images/fire-particles-particle-emitter.png b/doc/qtdesignstudio/examples/doc/images/fire-particles-particle-emitter.png
new file mode 100644
index 00000000000..0b7c1399d4d
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diff --git a/doc/qtdesignstudio/images/icons/jump-to-code-16px.png b/doc/qtdesignstudio/images/icons/jump-to-code-16px.png
new file mode 100644
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diff --git a/doc/qtdesignstudio/images/icons/run_project.png b/doc/qtdesignstudio/images/icons/run_project.png
new file mode 100644
index 00000000000..ab744888d43
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diff --git a/doc/qtdesignstudio/images/jump-to-the-code-from-2D-view.webp b/doc/qtdesignstudio/images/jump-to-the-code-from-2D-view.webp
new file mode 100644
index 00000000000..61bf73acf5f
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diff --git a/doc/qtdesignstudio/images/jump-to-the-code-from-connections-view.webp b/doc/qtdesignstudio/images/jump-to-the-code-from-connections-view.webp
new file mode 100644
index 00000000000..18657256793
Binary files /dev/null and b/doc/qtdesignstudio/images/jump-to-the-code-from-connections-view.webp differ
diff --git a/doc/qtdesignstudio/images/jump-to-the-code-from-navigator-view.webp b/doc/qtdesignstudio/images/jump-to-the-code-from-navigator-view.webp
new file mode 100644
index 00000000000..3591c4f11eb
Binary files /dev/null and b/doc/qtdesignstudio/images/jump-to-the-code-from-navigator-view.webp differ
diff --git a/doc/qtdesignstudio/images/jump-to-the-code-from-state-view.webp b/doc/qtdesignstudio/images/jump-to-the-code-from-state-view.webp
new file mode 100644
index 00000000000..f396f8eeb15
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diff --git a/doc/qtdesignstudio/src/qtdesignstudio-toc.qdoc b/doc/qtdesignstudio/src/qtdesignstudio-toc.qdoc
index de4e993b7f6..c79a576c56f 100644
--- a/doc/qtdesignstudio/src/qtdesignstudio-toc.qdoc
+++ b/doc/qtdesignstudio/src/qtdesignstudio-toc.qdoc
@@ -214,6 +214,7 @@
                             \list
                                 \li \l{Finding and Replacing}
                                 \li \l{Searching with the Locator}
+                                \li \l{Jump to the Code}
                             \endlist
                         \li \l{Refactoring}
                         \li \l{Applying Refactoring Actions}
diff --git a/share/qtcreator/qmldesigner/collectionEditorQmlSource/ImportDialog.qml b/share/qtcreator/qmldesigner/collectionEditorQmlSource/ImportDialog.qml
index bf28695ec9b..e7bcefff776 100644
--- a/share/qtcreator/qmldesigner/collectionEditorQmlSource/ImportDialog.qml
+++ b/share/qtcreator/qmldesigner/collectionEditorQmlSource/ImportDialog.qml
@@ -120,7 +120,7 @@ StudioControls.Dialog {
             actionIndicator.visible: false
             translationIndicator.visible: false
             validator: RegularExpressionValidator {
-                regularExpression: /^\w+$/
+                regularExpression: /^[\w ]+$/
             }
 
             Keys.onEnterPressed: btnImport.onClicked()
diff --git a/share/qtcreator/qmldesigner/collectionEditorQmlSource/NewCollectionDialog.qml b/share/qtcreator/qmldesigner/collectionEditorQmlSource/NewCollectionDialog.qml
index 50ae55ab722..5cac7fd3fc0 100644
--- a/share/qtcreator/qmldesigner/collectionEditorQmlSource/NewCollectionDialog.qml
+++ b/share/qtcreator/qmldesigner/collectionEditorQmlSource/NewCollectionDialog.qml
@@ -87,7 +87,7 @@ StudioControls.Dialog {
             actionIndicator.visible: false
             translationIndicator.visible: false
             validator: RegularExpressionValidator {
-                regularExpression: /^\w+$/
+                regularExpression: /^[\w ]+$/
             }
 
             Keys.onEnterPressed: btnCreate.onClicked()
diff --git a/share/qtcreator/qmldesigner/effectMakerQmlSources/BlurHelper.qml b/share/qtcreator/qmldesigner/effectMakerQmlSources/BlurHelper.qml
index e68a0bc8a25..0227d0f54af 100644
--- a/share/qtcreator/qmldesigner/effectMakerQmlSources/BlurHelper.qml
+++ b/share/qtcreator/qmldesigner/effectMakerQmlSources/BlurHelper.qml
@@ -25,7 +25,6 @@ Item {
 
     QtObject {
         id: priv
-        property bool useBlurItem1: true
         property bool useBlurItem2: rootItem.blurMax > 2
         property bool useBlurItem3: rootItem.blurMax > 8
         property bool useBlurItem4: rootItem.blurMax > 16
@@ -34,12 +33,12 @@ Item {
 
     BlurItem {
         id: blurredItemSource1
-        property Item src: priv.useBlurItem1 ? source : null
+        property Item src: source
         // Size of the first blurred item is by default half of the source.
         // Increase for quality and decrease for performance & more blur.
         readonly property int blurItemSize: 8
-        width: src ? Math.ceil(src.width / 16) * blurItemSize : 0
-        height: src ? Math.ceil(src.height / 16) * blurItemSize : 0
+        width: Math.ceil(rootItem.width / 16) * blurItemSize
+        height: Math.ceil(rootItem.height / 16) * blurItemSize
     }
     BlurItem {
         id: blurredItemSource2
diff --git a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/TextField.qml b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/TextField.qml
index 0180aa06ad5..58bd9c37d2e 100644
--- a/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/TextField.qml
+++ b/share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/TextField.qml
@@ -86,6 +86,9 @@ T.TextField {
         // was closed due to an menu item click.
         if (control.activeFocus && control.focusReason !== Qt.OtherFocusReason)
             control.preFocusText = control.text
+
+        if (!control.activeFocus)
+            control.deselect()
     }
 
     onEditChanged: {
diff --git a/src/libs/advanceddockingsystem/dockareawidget.cpp b/src/libs/advanceddockingsystem/dockareawidget.cpp
index 5cf12d70509..89fbbcfb3b6 100644
--- a/src/libs/advanceddockingsystem/dockareawidget.cpp
+++ b/src/libs/advanceddockingsystem/dockareawidget.cpp
@@ -189,7 +189,8 @@ struct DockAreaWidgetPrivate
 {
     DockAreaWidget *q = nullptr;
     QBoxLayout *m_layout = nullptr;
-    DockAreaLayout *m_contentsLayout = nullptr;
+    // DockAreaLayout is not a QObject -> std::unique_ptr manages deletion
+    std::unique_ptr<DockAreaLayout> m_contentsLayout;
     DockAreaTitleBar *m_titleBar = nullptr;
     DockManager *m_dockManager = nullptr;
     AutoHideDockContainer *m_autoHideDockContainer = nullptr;
@@ -328,7 +329,7 @@ DockAreaWidget::DockAreaWidget(DockManager *dockManager, DockContainerWidget *pa
     setLayout(d->m_layout);
 
     d->createTitleBar();
-    d->m_contentsLayout = new DockAreaLayout(d->m_layout);
+    d->m_contentsLayout = std::make_unique<DockAreaLayout>(d->m_layout);
     if (d->m_dockManager)
         emit d->m_dockManager->dockAreaCreated(this);
 }
@@ -336,8 +337,6 @@ DockAreaWidget::DockAreaWidget(DockManager *dockManager, DockContainerWidget *pa
 DockAreaWidget::~DockAreaWidget()
 {
     qCInfo(adsLog) << Q_FUNC_INFO;
-    delete d->m_contentsLayout;
-    delete d;
 }
 
 DockManager *DockAreaWidget::dockManager() const
diff --git a/src/libs/advanceddockingsystem/dockareawidget.h b/src/libs/advanceddockingsystem/dockareawidget.h
index 59f8b9ee207..dae4d942b8c 100644
--- a/src/libs/advanceddockingsystem/dockareawidget.h
+++ b/src/libs/advanceddockingsystem/dockareawidget.h
@@ -9,6 +9,8 @@
 
 #include <QFrame>
 
+#include <memory>
+
 QT_BEGIN_NAMESPACE
 class QAbstractButton;
 class QXmlStreamWriter;
@@ -33,7 +35,7 @@ class ADS_EXPORT DockAreaWidget : public QFrame
 {
     Q_OBJECT
 private:
-    DockAreaWidgetPrivate *d; ///< private data (pimpl)
+    std::unique_ptr<DockAreaWidgetPrivate> d; ///< private data (pimpl)
     friend struct DockAreaWidgetPrivate;
     friend class DockContainerWidget;
     friend class DockContainerWidgetPrivate;
diff --git a/src/plugins/effectmakernew/compositionnode.cpp b/src/plugins/effectmakernew/compositionnode.cpp
index 9520e50d050..9412153ddee 100644
--- a/src/plugins/effectmakernew/compositionnode.cpp
+++ b/src/plugins/effectmakernew/compositionnode.cpp
@@ -137,9 +137,9 @@ void CompositionNode::parse(const QString &effectName, const QString &qenPath, c
         QString trimmedLine = codeLine.trimmed();
         if (trimmedLine.startsWith("@requires")) {
             // Get the required node, remove "@requires "
-            QString nodeName = trimmedLine.sliced(10);
-            if (!nodeName.isEmpty() && !m_requiredNodes.contains(nodeName))
-                m_requiredNodes << nodeName;
+            QString nodeId = trimmedLine.sliced(10).toLower();
+            if (!nodeId.isEmpty() && !m_requiredNodes.contains(nodeId))
+                m_requiredNodes << nodeId;
         }
     }
 }
diff --git a/src/plugins/effectmakernew/effectmakermodel.cpp b/src/plugins/effectmakernew/effectmakermodel.cpp
index fbb439ff17d..4fcb6686a76 100644
--- a/src/plugins/effectmakernew/effectmakermodel.cpp
+++ b/src/plugins/effectmakernew/effectmakermodel.cpp
@@ -124,6 +124,10 @@ void EffectMakerModel::addNode(const QString &nodeQenPath)
 
             const QString path = EffectUtils::nodesSourcesPath() + "/common/" + requiredId + ".qen";
             auto requiredNode = new CompositionNode({}, path);
+            connect(qobject_cast<EffectMakerUniformsModel *>(requiredNode->uniformsModel()),
+                    &EffectMakerUniformsModel::dataChanged, this, [this] {
+                        setHasUnsavedChanges(true);
+                    });
             requiredNode->setRefCount(1);
             m_nodes.prepend(requiredNode);
         }
@@ -490,6 +494,9 @@ QJsonObject nodeToJson(const CompositionNode &node)
         QString type = Uniform::stringFromType(uniform->type());
         uniformObject.insert("type", type);
 
+        if (!uniform->displayName().isEmpty())
+            uniformObject.insert("displayName", QString(uniform->displayName()));
+
         QString value = variantAsDataString(uniform->type(), uniform->value());
         if (uniform->type() == Uniform::Type::Sampler)
             value = QFileInfo(value).fileName();
diff --git a/src/plugins/effectmakernew/uniform.cpp b/src/plugins/effectmakernew/uniform.cpp
index be10cc7f421..e9084f27991 100644
--- a/src/plugins/effectmakernew/uniform.cpp
+++ b/src/plugins/effectmakernew/uniform.cpp
@@ -114,6 +114,11 @@ QString Uniform::description() const
     return m_description;
 }
 
+QString Uniform::displayName() const
+{
+    return m_displayName;
+}
+
 QString Uniform::customValue() const
 {
     return m_customValue;
diff --git a/src/plugins/effectmakernew/uniform.h b/src/plugins/effectmakernew/uniform.h
index 7216c6d9d6b..2aa35d499d9 100644
--- a/src/plugins/effectmakernew/uniform.h
+++ b/src/plugins/effectmakernew/uniform.h
@@ -59,6 +59,7 @@ public:
 
     QString name() const;
     QString description() const;
+    QString displayName() const;
 
     QString customValue() const;
     void setCustomValue(const QString &newCustomValue);
diff --git a/src/plugins/qmldesigner/components/assetslibrary/assetslibrarywidget.cpp b/src/plugins/qmldesigner/components/assetslibrary/assetslibrarywidget.cpp
index 5c6ebf07c5d..13178c6dd2e 100644
--- a/src/plugins/qmldesigner/components/assetslibrary/assetslibrarywidget.cpp
+++ b/src/plugins/qmldesigner/components/assetslibrary/assetslibrarywidget.cpp
@@ -115,9 +115,8 @@ AssetsLibraryWidget::AssetsLibraryWidget(AsynchronousImageCache &asynchronousFon
     m_assetsWidget->setClearColor(Theme::getColor(Theme::Color::QmlDesigner_BackgroundColorDarkAlternate));
     m_assetsWidget->engine()->addImageProvider("qmldesigner_assets", m_assetsIconProvider);
 
-    connect(m_assetsModel, &AssetsLibraryModel::fileChanged, [](const QString &changeFilePath) {
-        QmlDesignerPlugin::instance()->emitAssetChanged(changeFilePath);
-    });
+    connect(m_assetsModel, &AssetsLibraryModel::fileChanged,
+            QmlDesignerPlugin::instance(), &QmlDesignerPlugin::assetChanged);
 
     auto layout = new QVBoxLayout(this);
     layout->setContentsMargins({});
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectiondetailsmodel.cpp b/src/plugins/qmldesigner/components/collectioneditor/collectiondetailsmodel.cpp
index 533c2d72b6c..2279b60d130 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectiondetailsmodel.cpp
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectiondetailsmodel.cpp
@@ -179,15 +179,16 @@ bool CollectionDetailsModel::setHeaderData(int section,
     return headerChanged;
 }
 
-bool CollectionDetailsModel::insertRows(int row, int count, const QModelIndex &parent)
+bool CollectionDetailsModel::insertRows(int row, int count, [[maybe_unused]] const QModelIndex &parent)
 {
     if (count < 1)
         return false;
 
     row = qBound(0, row, rowCount());
-    beginInsertRows(parent, row, row + count);
+
+    beginResetModel();
     m_currentCollection.insertEmptyElements(row, count);
-    endInsertRows();
+    endResetModel();
 
     selectRow(row);
     return true;
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectioneditorutils.cpp b/src/plugins/qmldesigner/components/collectioneditor/collectioneditorutils.cpp
index 4eeca52964d..f48b6547aea 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectioneditorutils.cpp
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectioneditorutils.cpp
@@ -3,11 +3,9 @@
 
 #include "collectioneditorutils.h"
 
-#include "abstractview.h"
-#include "bindingproperty.h"
+#include "model.h"
 #include "nodemetainfo.h"
 #include "propertymetainfo.h"
-#include "variantproperty.h"
 
 #include <variant>
 
@@ -137,33 +135,6 @@ QString getSourceCollectionType(const ModelNode &node)
     return {};
 }
 
-void assignCollectionToNode(AbstractView *view,
-                            const ModelNode &modelNode,
-                            const ModelNode &collectionSourceNode,
-                            const QString &collectionName)
-{
-    QTC_ASSERT(modelNode.isValid() && collectionSourceNode.isValid(), return);
-
-    QString sourceId = isDataStoreNode(collectionSourceNode) ? "DataStore"
-                                                             : collectionSourceNode.id();
-
-    if (sourceId.isEmpty() || !canAcceptCollectionAsModel(modelNode))
-        return;
-
-    VariantProperty sourceProperty = collectionSourceNode.variantProperty(collectionName.toLatin1());
-    if (!sourceProperty.exists())
-        return;
-
-    BindingProperty modelProperty = modelNode.bindingProperty("model");
-
-    QString identifier = QString("%1.%2").arg(sourceId, QString::fromLatin1(sourceProperty.name()));
-
-    view->executeInTransaction("CollectionEditor::assignCollectionToNode",
-                               [&modelProperty, &identifier]() {
-                                   modelProperty.setExpression(identifier);
-                               });
-}
-
 Utils::FilePath dataStoreJsonFilePath()
 {
     return collectionPath("models.json");
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectioneditorutils.h b/src/plugins/qmldesigner/components/collectioneditor/collectioneditorutils.h
index 835960f671e..036304a3819 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectioneditorutils.h
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectioneditorutils.h
@@ -24,11 +24,6 @@ QString getSourceCollectionType(const QmlDesigner::ModelNode &node);
 
 QString getSourceCollectionPath(const QmlDesigner::ModelNode &dataStoreNode);
 
-void assignCollectionToNode(AbstractView *view,
-                            const ModelNode &modelNode,
-                            const ModelNode &collectionSourceNode,
-                            const QString &collectionName);
-
 Utils::FilePath dataStoreJsonFilePath();
 
 Utils::FilePath dataStoreQmlFilePath();
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectionsourcemodel.cpp b/src/plugins/qmldesigner/components/collectioneditor/collectionsourcemodel.cpp
index 4d7773ade33..5c4de3e4388 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectionsourcemodel.cpp
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectionsourcemodel.cpp
@@ -394,27 +394,24 @@ void CollectionSourceModel::updateNodeSource(const ModelNode &node)
     updateCollectionList(index);
 }
 
-void CollectionSourceModel::onSelectedCollectionChanged(int collectionIndex)
+void CollectionSourceModel::onSelectedCollectionChanged(CollectionListModel *collectionList,
+                                                        int collectionIndex)
 {
-    CollectionListModel *collectionList = qobject_cast<CollectionListModel *>(sender());
-    if (collectionIndex > -1 && collectionList) {
+    if (collectionIndex > -1) {
         if (m_previousSelectedList && m_previousSelectedList != collectionList)
             m_previousSelectedList->selectCollectionIndex(-1);
 
         m_previousSelectedList = collectionList;
 
-        emit collectionSelected(collectionList->sourceNode(),
-                                collectionList->collectionNameAt(collectionIndex));
+        emit collectionSelected(collectionList->collectionNameAt(collectionIndex));
 
         selectSourceIndex(sourceIndex(collectionList->sourceNode()));
     }
 }
 
-void CollectionSourceModel::onCollectionNameChanged(const QString &oldName, const QString &newName)
+void CollectionSourceModel::onCollectionNameChanged(CollectionListModel *collectionList,
+                                                    const QString &oldName, const QString &newName)
 {
-    CollectionListModel *collectionList = qobject_cast<CollectionListModel *>(sender());
-    QTC_ASSERT(collectionList, return);
-
     auto emitRenameWarning = [this](const QString &msg) -> void {
         emit this->warning(tr("Rename Model"), msg);
     };
@@ -496,15 +493,14 @@ void CollectionSourceModel::onCollectionNameChanged(const QString &oldName, cons
             return;
         }
 
+        emit collectionRenamed(oldName, newName);
         updateCollectionList(nodeIndex);
     }
 }
 
-void CollectionSourceModel::onCollectionsRemoved(const QStringList &removedCollections)
+void CollectionSourceModel::onCollectionsRemoved(CollectionListModel *collectionList,
+                                                 const QStringList &removedCollections)
 {
-    CollectionListModel *collectionList = qobject_cast<CollectionListModel *>(sender());
-    QTC_ASSERT(collectionList, return);
-
     auto emitDeleteWarning = [this](const QString &msg) -> void {
         emit warning(tr("Delete Model"), msg);
     };
@@ -551,10 +547,12 @@ void CollectionSourceModel::onCollectionsRemoved(const QStringList &removedColle
     if (document.isObject()) {
         QJsonObject rootObject = document.object();
 
+        QStringList collectionsRemovedFromDocument;
         for (const QString &collectionName : removedCollections) {
             bool sourceContainsCollection = rootObject.contains(collectionName);
             if (sourceContainsCollection) {
                 rootObject.remove(collectionName);
+                collectionsRemovedFromDocument << collectionName;
             } else {
                 emitDeleteWarning(tr("The model group doesn't contain the model name (%1).")
                                       .arg(sourceContainsCollection));
@@ -576,6 +574,9 @@ void CollectionSourceModel::onCollectionsRemoved(const QStringList &removedColle
             return;
         }
 
+        for (const QString &collectionName : std::as_const(collectionsRemovedFromDocument))
+            emit this->collectionRemoved(collectionName);
+
         updateCollectionList(nodeIndex);
     }
 }
@@ -606,7 +607,7 @@ void CollectionSourceModel::setSelectedIndex(int idx)
             } else if (m_previousSelectedList) {
                 m_previousSelectedList->selectCollectionIndex(-1);
                 m_previousSelectedList = {};
-                emit this->collectionSelected(sourceNodeAt(idx), {});
+                emit this->collectionSelected({});
             }
         }
     }
@@ -630,37 +631,38 @@ void CollectionSourceModel::updateCollectionList(QModelIndex index)
         return;
 
     ModelNode sourceNode = sourceNodeAt(index.row());
-    QSharedPointer<CollectionListModel> currentList = m_collectionList.at(index.row());
-    QSharedPointer<CollectionListModel> newList = loadCollection(sourceNode, currentList);
-    if (currentList != newList) {
+    QSharedPointer<CollectionListModel> oldList = m_collectionList.at(index.row());
+    QSharedPointer<CollectionListModel> newList = loadCollection(sourceNode, oldList);
+    if (oldList != newList) {
         m_collectionList.replace(index.row(), newList);
         emit dataChanged(index, index, {CollectionsRole});
-        emit collectionNamesChanged(sourceNode, newList->stringList());
+        registerCollection(newList);
     }
 }
 
 void CollectionSourceModel::registerCollection(const QSharedPointer<CollectionListModel> &collection)
 {
-    connect(collection.data(),
-            &CollectionListModel::selectedIndexChanged,
-            this,
-            &CollectionSourceModel::onSelectedCollectionChanged,
-            Qt::UniqueConnection);
+    CollectionListModel *collectionList = collection.data();
+    if (collectionList == nullptr)
+        return;
 
-    connect(collection.data(),
-            &CollectionListModel::collectionNameChanged,
-            this,
-            &CollectionSourceModel::onCollectionNameChanged,
-            Qt::UniqueConnection);
+    connect(collectionList, &CollectionListModel::selectedIndexChanged, this,
+        [this, collectionList](int idx) {
+            onSelectedCollectionChanged(collectionList, idx);
+        }, Qt::UniqueConnection);
 
-    connect(collection.data(),
-            &CollectionListModel::collectionsRemoved,
-            this,
-            &CollectionSourceModel::onCollectionsRemoved,
-            Qt::UniqueConnection);
+    connect(collectionList, &CollectionListModel::collectionNameChanged, this,
+        [this, collectionList](const QString &oldName, const QString &newName) {
+            onCollectionNameChanged(collectionList, oldName, newName);
+        }, Qt::UniqueConnection);
 
-    if (collection.data() && collection->sourceNode())
-        emit collectionNamesChanged(collection->sourceNode(), collection->stringList());
+    connect(collectionList, &CollectionListModel::collectionsRemoved, this,
+        [this, collectionList](const QStringList &removedCollections) {
+            onCollectionsRemoved(collectionList, removedCollections);
+        }, Qt::UniqueConnection);
+
+    if (collectionList->sourceNode().isValid())
+        emit collectionNamesInitialized(collection->stringList());
 }
 
 QModelIndex CollectionSourceModel::indexOfNode(const ModelNode &node) const
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectionsourcemodel.h b/src/plugins/qmldesigner/components/collectioneditor/collectionsourcemodel.h
index 36226138c30..487b616b97b 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectionsourcemodel.h
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectionsourcemodel.h
@@ -70,15 +70,20 @@ public:
 
 signals:
     void selectedIndexChanged(int idx);
-    void collectionSelected(const ModelNode &sourceNode, const QString &collectionName);
-    void collectionNamesChanged(const ModelNode &sourceNode, QStringList collections);
+    void collectionSelected(const QString &collectionName);
+    void collectionNamesInitialized(const QStringList &initialList);
+    void collectionRenamed(const QString &oldname, const QString &newName);
+    void collectionRemoved(const QString &collectionName);
+
     void isEmptyChanged(bool);
     void warning(const QString &title, const QString &body);
 
 private slots:
-    void onSelectedCollectionChanged(int collectionIndex);
-    void onCollectionNameChanged(const QString &oldName, const QString &newName);
-    void onCollectionsRemoved(const QStringList &removedCollections);
+    void onSelectedCollectionChanged(CollectionListModel *collectionList, int collectionIndex);
+    void onCollectionNameChanged(CollectionListModel *collectionList, const QString &oldName,
+                                 const QString &newName);
+    void onCollectionsRemoved(CollectionListModel *collectionList,
+                              const QStringList &removedCollections);
 
 private:
     void setSelectedIndex(int idx);
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectionview.cpp b/src/plugins/qmldesigner/components/collectioneditor/collectionview.cpp
index 9140f02ec53..f17abf5d9f5 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectionview.cpp
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectionview.cpp
@@ -70,8 +70,8 @@ QmlDesigner::WidgetInfo CollectionView::widgetInfo()
         connect(sourceModel,
                 &CollectionSourceModel::collectionSelected,
                 this,
-                [this](const ModelNode &sourceNode, const QString &collection) {
-                    m_widget->collectionDetailsModel()->loadCollection(sourceNode, collection);
+                [this](const QString &collection) {
+                    m_widget->collectionDetailsModel()->loadCollection(dataStoreNode(), collection);
                 });
 
         connect(sourceModel, &CollectionSourceModel::isEmptyChanged, this, [this](bool isEmpty) {
@@ -80,11 +80,24 @@ QmlDesigner::WidgetInfo CollectionView::widgetInfo()
         });
 
         connect(sourceModel,
-                &CollectionSourceModel::collectionNamesChanged,
+                &CollectionSourceModel::collectionNamesInitialized,
                 this,
-                [this](const ModelNode &sourceNode, const QStringList &collectionNames) {
-                    if (sourceNode == m_dataStore->modelNode())
-                        m_dataStore->setCollectionNames(collectionNames);
+                [this](const QStringList &collectionNames) {
+                    m_dataStore->setCollectionNames(collectionNames);
+                });
+
+        connect(sourceModel,
+                &CollectionSourceModel::collectionRenamed,
+                this,
+                [this](const QString &oldName, const QString &newName) {
+                    m_dataStore->renameCollection(oldName, newName);
+                });
+
+        connect(sourceModel,
+                &CollectionSourceModel::collectionRemoved,
+                this,
+                [this](const QString &collectionName) {
+                    m_dataStore->removeCollection(collectionName);
                 });
     }
 
@@ -200,6 +213,12 @@ void CollectionView::addResource(const QUrl &url, const QString &name, const QSt
     });
 }
 
+void CollectionView::assignCollectionToSelectedNode(const QString &collectionName)
+{
+    QTC_ASSERT(dataStoreNode() && hasSingleSelectedModelNode(), return);
+    m_dataStore->assignCollectionToNode(this, singleSelectedModelNode(), collectionName);
+}
+
 void CollectionView::registerDeclarativeType()
 {
     CollectionDetails::registerDeclarativeType();
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectionview.h b/src/plugins/qmldesigner/components/collectioneditor/collectionview.h
index dd946776ed1..c08368b0c35 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectionview.h
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectionview.h
@@ -43,6 +43,8 @@ public:
 
     void addResource(const QUrl &url, const QString &name, const QString &type);
 
+    void assignCollectionToSelectedNode(const QString &collectionName);
+
     static void registerDeclarativeType();
 
     void resetDataStoreNode();
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectionwidget.cpp b/src/plugins/qmldesigner/components/collectioneditor/collectionwidget.cpp
index 30ae4418ed6..9b14c2cd036 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectionwidget.cpp
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectionwidget.cpp
@@ -337,17 +337,7 @@ bool CollectionWidget::addCollectionToDataStore(const QString &collectionName)
 
 void CollectionWidget::assignCollectionToSelectedNode(const QString collectionName)
 {
-    ModelNode dsNode = dataStoreNode();
-    ModelNode targetNode = m_view->singleSelectedModelNode();
-
-    QTC_ASSERT(dsNode.isValid() && targetNode.isValid(), return);
-
-    if (dsNode.id().isEmpty()) {
-        warn(tr("Assigning the model"), tr("The model must have a valid id to be assigned."));
-        return;
-    }
-
-    CollectionEditor::assignCollectionToNode(m_view, targetNode, dsNode, collectionName);
+    m_view->assignCollectionToSelectedNode(collectionName);
 }
 
 void CollectionWidget::ensureDataStoreExists()
diff --git a/src/plugins/qmldesigner/components/collectioneditor/datastoremodelnode.cpp b/src/plugins/qmldesigner/components/collectioneditor/datastoremodelnode.cpp
index 446d7ef08fc..bebc60f1de1 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/datastoremodelnode.cpp
+++ b/src/plugins/qmldesigner/components/collectioneditor/datastoremodelnode.cpp
@@ -3,6 +3,7 @@
 
 #include "datastoremodelnode.h"
 
+#include "abstractview.h"
 #include "collectioneditorconstants.h"
 #include "collectioneditorutils.h"
 #include "model/qmltextgenerator.h"
@@ -22,6 +23,9 @@
 #include <utils/fileutils.h>
 #include <utils/qtcassert.h>
 
+#include <QRegularExpression>
+#include <QRegularExpressionMatch>
+
 namespace {
 
 QmlDesigner::PropertyNameList createNameList(const QmlDesigner::ModelNode &node)
@@ -42,6 +46,19 @@ QmlDesigner::PropertyNameList createNameList(const QmlDesigner::ModelNode &node)
     return defaultsNodeProps + dynamicPropertyNames;
 }
 
+bool isValidCollectionPropertyName(const QString &collectionId)
+{
+    static const QmlDesigner::PropertyNameList reservedKeywords = {
+        QmlDesigner::CollectionEditor::SOURCEFILE_PROPERTY,
+        QmlDesigner::CollectionEditor::JSONBACKEND_TYPENAME,
+        "backend",
+        "models",
+    };
+
+    return QmlDesigner::ModelNode::isValidId(collectionId)
+           && !reservedKeywords.contains(collectionId.toLatin1());
+}
+
 } // namespace
 
 namespace QmlDesigner {
@@ -85,15 +102,13 @@ void DataStoreModelNode::reloadModel()
 
     m_dataRelativePath = dataStoreJsonPath.relativePathFrom(dataStoreQmlPath).toFSPathString();
 
-    if (forceUpdate) {
-        updateDataStoreProperties();
-        updateSingletonFile();
-    }
+    if (forceUpdate)
+        update();
 }
 
 QStringList DataStoreModelNode::collectionNames() const
 {
-    return m_collectionNames;
+    return m_collectionPropertyNames.keys();
 }
 
 Model *DataStoreModelNode::model() const
@@ -137,23 +152,60 @@ void DataStoreModelNode::updateDataStoreProperties()
 
     static TypeName childNodeTypename = "ChildListModel";
 
+    QSet<QString> collectionNamesToBeAdded;
+    const QStringList allCollectionNames = m_collectionPropertyNames.keys();
+    for (const QString &collectionName : allCollectionNames)
+        collectionNamesToBeAdded << collectionName;
+
     const QList<AbstractProperty> formerPropertyNames = rootNode.dynamicProperties();
-    for (const AbstractProperty &property : formerPropertyNames)
-        rootNode.removeProperty(property.name());
+
+    // Remove invalid collection names from the properties
+    for (const AbstractProperty &property : formerPropertyNames) {
+        if (!property.isNodeProperty())
+            continue;
+
+        NodeProperty nodeProprty = property.toNodeProperty();
+        if (!nodeProprty.hasDynamicTypeName(childNodeTypename))
+            continue;
+
+        ModelNode childNode = nodeProprty.modelNode();
+        if (childNode.hasProperty(CollectionEditor::JSONCHILDMODELNAME_PROPERTY)) {
+            QString modelName = childNode.property(CollectionEditor::JSONCHILDMODELNAME_PROPERTY)
+                                    .toVariantProperty()
+                                    .value()
+                                    .toString();
+            if (collectionNamesToBeAdded.contains(modelName)) {
+                m_collectionPropertyNames.insert(modelName, property.name());
+                collectionNamesToBeAdded.remove(modelName);
+            } else {
+                rootNode.removeProperty(property.name());
+            }
+        } else {
+            rootNode.removeProperty(property.name());
+        }
+    }
 
     rootNode.setIdWithoutRefactoring("models");
 
-    for (const QString &collectionName : std::as_const(m_collectionNames)) {
-        PropertyName newName = collectionName.toLatin1();
+    QStringList collectionNamesLeft = collectionNamesToBeAdded.values();
+    Utils::sort(collectionNamesLeft);
+    for (const QString &collectionName : std::as_const(collectionNamesLeft)) {
+        PropertyName newPropertyName = getUniquePropertyName(collectionName);
+        if (newPropertyName.isEmpty()) {
+            qWarning() << __FUNCTION__ << __LINE__
+                       << QString("The property name cannot be generated from \"%1\"").arg(collectionName);
+            continue;
+        }
 
         ModelNode collectionNode = model()->createModelNode(childNodeTypename);
-
         VariantProperty modelNameProperty = collectionNode.variantProperty(
             CollectionEditor::JSONCHILDMODELNAME_PROPERTY);
-        modelNameProperty.setValue(newName);
+        modelNameProperty.setValue(collectionName);
 
-        NodeProperty nodeProp = rootNode.nodeProperty(newName);
+        NodeProperty nodeProp = rootNode.nodeProperty(newPropertyName);
         nodeProp.setDynamicTypeNameAndsetModelNode(childNodeTypename, collectionNode);
+
+        m_collectionPropertyNames.insert(collectionName, newPropertyName);
     }
 
     // Backend Property
@@ -186,13 +238,127 @@ void DataStoreModelNode::updateSingletonFile()
     file.finalize();
 }
 
+void DataStoreModelNode::update()
+{
+    updateDataStoreProperties();
+    updateSingletonFile();
+}
+
+PropertyName DataStoreModelNode::getUniquePropertyName(const QString &collectionName)
+{
+    ModelNode dataStoreNode = modelNode();
+    QTC_ASSERT(!collectionName.isEmpty() && dataStoreNode.isValid(), return {});
+
+    QString newProperty;
+
+    // convert to camel case
+    QStringList nameWords = collectionName.split(' ');
+    nameWords[0] = nameWords[0].at(0).toLower() + nameWords[0].mid(1);
+    for (int i = 1; i < nameWords.size(); ++i)
+        nameWords[i] = nameWords[i].at(0).toUpper() + nameWords[i].mid(1);
+    newProperty = nameWords.join("");
+
+    // if id starts with a number prepend an underscore
+    if (newProperty.at(0).isDigit())
+        newProperty.prepend('_');
+
+    // If the new id is not valid (e.g. qml keyword match), prepend an underscore
+    if (!isValidCollectionPropertyName(newProperty))
+        newProperty.prepend('_');
+
+    static const QRegularExpression rgx("\\d+$"); // matches a number at the end of a string
+    while (dataStoreNode.hasProperty(newProperty.toLatin1())) { // id exists
+        QRegularExpressionMatch match = rgx.match(newProperty);
+        if (match.hasMatch()) {                                 // ends with a number, increment it
+            QString numStr = match.captured();
+            int num = numStr.toInt() + 1;
+            newProperty = newProperty.mid(0, match.capturedStart()) + QString::number(num);
+        } else {
+            newProperty.append('1');
+        }
+    }
+
+    return newProperty.toLatin1();
+}
+
 void DataStoreModelNode::setCollectionNames(const QStringList &newCollectionNames)
 {
-    if (m_collectionNames != newCollectionNames) {
-        m_collectionNames = newCollectionNames;
-        updateDataStoreProperties();
-        updateSingletonFile();
+    m_collectionPropertyNames.clear();
+    for (const QString &collectionName : newCollectionNames)
+        m_collectionPropertyNames.insert(collectionName, {});
+    update();
+}
+
+void DataStoreModelNode::renameCollection(const QString &oldName, const QString &newName)
+{
+    ModelNode dataStoreNode = modelNode();
+    QTC_ASSERT(dataStoreNode.isValid(), return);
+
+    if (m_collectionPropertyNames.contains(oldName)) {
+        const PropertyName oldPropertyName = m_collectionPropertyNames.value(oldName);
+        if (!oldPropertyName.isEmpty() && dataStoreNode.hasProperty(oldPropertyName)) {
+            NodeProperty collectionNode = dataStoreNode.property(oldPropertyName).toNodeProperty();
+            if (collectionNode.isValid()) {
+                VariantProperty modelNameProperty = collectionNode.modelNode().variantProperty(
+                    CollectionEditor::JSONCHILDMODELNAME_PROPERTY);
+                modelNameProperty.setValue(newName);
+                m_collectionPropertyNames.remove(oldName);
+                m_collectionPropertyNames.insert(newName, collectionNode.name());
+                update();
+                return;
+            }
+            qWarning() << __FUNCTION__ << __LINE__
+                       << "There is no valid node for the old collection name";
+            return;
+        }
+        qWarning() << __FUNCTION__ << __LINE__ << QString("Invalid old property name")
+                   << oldPropertyName;
+        return;
+    }
+    qWarning() << __FUNCTION__ << __LINE__
+               << QString("There is no old collection name registered with this name \"%1\"").arg(oldName);
+}
+
+void DataStoreModelNode::removeCollection(const QString &collectionName)
+{
+    if (m_collectionPropertyNames.contains(collectionName)) {
+        m_collectionPropertyNames.remove(collectionName);
+        update();
     }
 }
 
+void DataStoreModelNode::assignCollectionToNode(AbstractView *view,
+                                                const ModelNode &targetNode,
+                                                const QString &collectionName)
+{
+    QTC_ASSERT(targetNode.isValid(), return);
+
+    if (!CollectionEditor::canAcceptCollectionAsModel(targetNode))
+        return;
+
+    if (!m_collectionPropertyNames.contains(collectionName)) {
+        qWarning() << __FUNCTION__ << __LINE__ << "Collection doesn't exist in the DataStore"
+                   << collectionName;
+        return;
+    }
+
+    PropertyName propertyName = m_collectionPropertyNames.value(collectionName);
+
+    const ModelNode dataStore = modelNode();
+    VariantProperty sourceProperty = dataStore.variantProperty(propertyName);
+    if (!sourceProperty.exists()) {
+        qWarning() << __FUNCTION__ << __LINE__
+                   << "The source property doesn't exist in the DataStore.";
+        return;
+    }
+
+    BindingProperty modelProperty = targetNode.bindingProperty("model");
+
+    QString identifier = QString("DataStore.%1").arg(QString::fromLatin1(sourceProperty.name()));
+
+    view->executeInTransaction("assignCollectionToNode", [&modelProperty, &identifier]() {
+        modelProperty.setExpression(identifier);
+    });
+}
+
 } // namespace QmlDesigner
diff --git a/src/plugins/qmldesigner/components/collectioneditor/datastoremodelnode.h b/src/plugins/qmldesigner/components/collectioneditor/datastoremodelnode.h
index e76d7f50e4a..3048fc4fc9c 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/datastoremodelnode.h
+++ b/src/plugins/qmldesigner/components/collectioneditor/datastoremodelnode.h
@@ -5,6 +5,8 @@
 
 #include <modelnode.h>
 
+#include <QMap>
+
 namespace QmlDesigner {
 
 class Model;
@@ -21,6 +23,12 @@ public:
     ModelNode modelNode() const;
 
     void setCollectionNames(const QStringList &newCollectionNames);
+    void renameCollection(const QString &oldName, const QString &newName);
+    void removeCollection(const QString &collectionName);
+
+    void assignCollectionToNode(AbstractView *view,
+                                const ModelNode &targetNode,
+                                const QString &collectionName);
 
 private:
     QString getModelQmlText();
@@ -28,9 +36,11 @@ private:
     void reset();
     void updateDataStoreProperties();
     void updateSingletonFile();
+    void update();
+    PropertyName getUniquePropertyName(const QString &collectionName);
 
     ModelPointer m_model;
-    QStringList m_collectionNames;
+    QMap<QString, PropertyName> m_collectionPropertyNames;
     QString m_dataRelativePath;
 };
 
diff --git a/src/plugins/qmldesigner/components/eventlist/eventlistdelegate.cpp b/src/plugins/qmldesigner/components/eventlist/eventlistdelegate.cpp
index 939c36d338d..1db399b1539 100644
--- a/src/plugins/qmldesigner/components/eventlist/eventlistdelegate.cpp
+++ b/src/plugins/qmldesigner/components/eventlist/eventlistdelegate.cpp
@@ -27,8 +27,15 @@ QWidget *EventListDelegate::createEditor(QWidget *parent,
 {
     if (index.column() == EventListModel::shortcutColumn) {
         auto *editor = new ShortcutWidget(parent);
-        connect(editor, &ShortcutWidget::done, this, &EventListDelegate::commitAndClose);
-        connect(editor, &ShortcutWidget::cancel, this, &EventListDelegate::close);
+        connect(editor, &ShortcutWidget::done, this, [this, editor] {
+            auto that = const_cast<EventListDelegate *>(this);
+            emit that->commitData(editor);
+            emit that->closeEditor(editor);
+        });
+        connect(editor, &ShortcutWidget::cancel, this, [this, editor] {
+            auto that = const_cast<EventListDelegate *>(this);
+            emit that->closeEditor(editor);
+        });
         return editor;
     } else if (index.column() == EventListModel::connectColumn) {
         return nullptr;
@@ -170,18 +177,4 @@ QSize EventListDelegate::sizeHint(const QStyleOptionViewItem &option, const QMod
     return QStyledItemDelegate::sizeHint(option, index);
 }
 
-void EventListDelegate::commitAndClose()
-{
-    if (auto *editor = qobject_cast<ShortcutWidget *>(sender())) {
-        emit commitData(editor);
-        emit closeEditor(editor);
-    }
-}
-
-void EventListDelegate::close()
-{
-    if (auto *editor = qobject_cast<ShortcutWidget *>(sender()))
-        emit closeEditor(editor);
-}
-
 } // namespace QmlDesigner.
diff --git a/src/plugins/qmldesigner/components/eventlist/eventlistdelegate.h b/src/plugins/qmldesigner/components/eventlist/eventlistdelegate.h
index 62ab74b617c..1589525df00 100644
--- a/src/plugins/qmldesigner/components/eventlist/eventlistdelegate.h
+++ b/src/plugins/qmldesigner/components/eventlist/eventlistdelegate.h
@@ -39,9 +39,6 @@ protected:
     QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
 
 private:
-    void close();
-    void commitAndClose();
-
     static bool hasConnectionColumn(QObject *parent);
     static QRect connectButtonRect(const QStyleOptionViewItem &option);
 };
diff --git a/src/plugins/qmldesigner/components/eventlist/nodelistdelegate.cpp b/src/plugins/qmldesigner/components/eventlist/nodelistdelegate.cpp
index b56f57ef0fb..b36f9577d69 100644
--- a/src/plugins/qmldesigner/components/eventlist/nodelistdelegate.cpp
+++ b/src/plugins/qmldesigner/components/eventlist/nodelistdelegate.cpp
@@ -51,18 +51,4 @@ bool NodeListDelegate::eventFilter(QObject *editor, QEvent *event)
     return QStyledItemDelegate::eventFilter(editor, event);
 }
 
-void NodeListDelegate::commitAndClose()
-{
-    if (auto *editor = qobject_cast<ShortcutWidget *>(sender())) {
-        emit commitData(editor);
-        emit closeEditor(editor);
-    }
-}
-
-void NodeListDelegate::close()
-{
-    if (auto *editor = qobject_cast<ShortcutWidget *>(sender()))
-        emit closeEditor(editor);
-}
-
 } // namespace QmlDesigner.
diff --git a/src/plugins/qmldesigner/components/eventlist/nodelistdelegate.h b/src/plugins/qmldesigner/components/eventlist/nodelistdelegate.h
index 6bfb7a6bf28..31fbe465ee3 100644
--- a/src/plugins/qmldesigner/components/eventlist/nodelistdelegate.h
+++ b/src/plugins/qmldesigner/components/eventlist/nodelistdelegate.h
@@ -16,10 +16,6 @@ public:
 
 protected:
     bool eventFilter(QObject *editor, QEvent *event) override;
-
-private:
-    void close();
-    void commitAndClose();
 };
 
 } // namespace QmlDesigner.
diff --git a/src/plugins/qmldesigner/components/timelineeditor/easingcurvedialog.cpp b/src/plugins/qmldesigner/components/timelineeditor/easingcurvedialog.cpp
index b6b49d054d7..a2fb6339f31 100644
--- a/src/plugins/qmldesigner/components/timelineeditor/easingcurvedialog.cpp
+++ b/src/plugins/qmldesigner/components/timelineeditor/easingcurvedialog.cpp
@@ -41,12 +41,12 @@ EasingCurveDialog::EasingCurveDialog(const QList<ModelNode> &frames, QWidget *pa
 {
     setWindowFlag(Qt::Tool, true);
 
-    auto tw = new QTabWidget;
-    tw->setTabPosition(QTabWidget::East);
-    tw->addTab(m_splineEditor, "Curve");
-    tw->addTab(m_text, "Text");
+    m_tabWidget = new QTabWidget;
+    m_tabWidget->setTabPosition(QTabWidget::East);
+    m_tabWidget->addTab(m_splineEditor, "Curve");
+    m_tabWidget->addTab(m_text, "Text");
 
-    connect(tw, &QTabWidget::currentChanged, this, &EasingCurveDialog::tabClicked);
+    connect(m_tabWidget, &QTabWidget::currentChanged, this, &EasingCurveDialog::tabClicked);
     connect(m_text, &QPlainTextEdit::textChanged, this, &EasingCurveDialog::textChanged);
 
     auto labelFont = m_label->font();
@@ -105,7 +105,7 @@ EasingCurveDialog::EasingCurveDialog(const QList<ModelNode> &frames, QWidget *pa
     grid->addLayout(vbox, 0, 0);
     grid->addWidget(presetBar, 0, 1, Qt::AlignBottom);
 
-    grid->addWidget(tw);
+    grid->addWidget(m_tabWidget);
     grid->addWidget(m_presets, 1, 1);
     grid->addLayout(m_durationLayout, 2, 0);
     grid->addLayout(buttonLayout, 2, 1);
@@ -126,7 +126,6 @@ EasingCurveDialog::EasingCurveDialog(const QList<ModelNode> &frames, QWidget *pa
     connect(durationEdit, &QSpinBox::valueChanged, m_splineEditor, &SplineEditor::setDuration);
     connect(animateButton, &QPushButton::clicked, m_splineEditor, &SplineEditor::animate);
 
-
     resize(QSize(1421, 918));
 }
 
@@ -185,7 +184,7 @@ bool EasingCurveDialog::apply()
     }
     AbstractView *view = m_frames.first().view();
 
-    return view->executeInTransaction("EasingCurveDialog::apply", [this](){
+    return view->executeInTransaction("EasingCurveDialog::apply", [this] {
         auto expression = m_splineEditor->easingCurve().toString();
         for (const auto &frame : std::as_const(m_frames))
             frame.bindingProperty(m_easingCurveProperty).setExpression(expression);
@@ -201,29 +200,22 @@ void EasingCurveDialog::textChanged()
 
 void EasingCurveDialog::tabClicked(int id)
 {
-    if (auto tw = qobject_cast<const QTabWidget *>(sender())) {
-        int seid = tw->indexOf(m_splineEditor);
-        if (seid == id) {
-            for (int i = 0; i < m_durationLayout->count(); ++i) {
-                auto *item = m_durationLayout->itemAt(i);
-                if (auto *widget = item->widget())
-                    widget->show();
-            }
-
-            auto curve = m_splineEditor->easingCurve();
-            curve.fromString(m_text->toPlainText());
-            m_splineEditor->setEasingCurve(curve);
-
-        } else {
-            for (int i = 0; i < m_durationLayout->count(); ++i) {
-                auto *item = m_durationLayout->itemAt(i);
-                if (auto *widget = item->widget())
-                    widget->hide();
-            }
-
-            auto curve = m_splineEditor->easingCurve();
-            m_text->setPlainText(curve.toString());
+    const int seid = m_tabWidget->indexOf(m_splineEditor);
+    if (seid == id) {
+        for (int i = 0; i < m_durationLayout->count(); ++i) {
+            if (auto *widget = m_durationLayout->itemAt(i)->widget())
+                widget->show();
         }
+        auto curve = m_splineEditor->easingCurve();
+        curve.fromString(m_text->toPlainText());
+        m_splineEditor->setEasingCurve(curve);
+    } else {
+        for (int i = 0; i < m_durationLayout->count(); ++i) {
+            if (auto *widget = m_durationLayout->itemAt(i)->widget())
+                widget->hide();
+        }
+        auto curve = m_splineEditor->easingCurve();
+        m_text->setPlainText(curve.toString());
     }
 }
 
diff --git a/src/plugins/qmldesigner/components/timelineeditor/easingcurvedialog.h b/src/plugins/qmldesigner/components/timelineeditor/easingcurvedialog.h
index 06ce53c2305..039697db5a3 100644
--- a/src/plugins/qmldesigner/components/timelineeditor/easingcurvedialog.h
+++ b/src/plugins/qmldesigner/components/timelineeditor/easingcurvedialog.h
@@ -9,9 +9,10 @@
 #include <modelnode.h>
 
 QT_BEGIN_NAMESPACE
+class QHBoxLayout;
 class QLabel;
 class QPlainTextEdit;
-class QHBoxLayout;
+class QTabWidget;
 QT_END_NAMESPACE
 
 namespace QmlDesigner {
@@ -33,32 +34,21 @@ public:
 
 private:
     bool apply();
-
     void textChanged();
-
     void tabClicked(int id);
-
     void presetTabClicked(int id);
-
     void buttonsClicked(QDialogButtonBox::StandardButton button);
-
     void updateEasingCurve(const EasingCurve &curve);
 
 private:
+    QTabWidget *m_tabWidget = nullptr;
     SplineEditor *m_splineEditor = nullptr;
-
     QPlainTextEdit *m_text = nullptr;
-
     PresetEditor *m_presets = nullptr;
-
     QHBoxLayout *m_durationLayout = nullptr;
-
     QDialogButtonBox *m_buttons = nullptr;
-
     QLabel *m_label = nullptr;
-
     QList<ModelNode> m_frames;
-
     PropertyName m_easingCurveProperty;
 };
 
diff --git a/src/plugins/qmldesigner/qmldesignerplugin.cpp b/src/plugins/qmldesigner/qmldesignerplugin.cpp
index 32abfe73853..4e98ab92589 100644
--- a/src/plugins/qmldesigner/qmldesignerplugin.cpp
+++ b/src/plugins/qmldesigner/qmldesignerplugin.cpp
@@ -62,11 +62,12 @@
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/projectmanager.h>
 #include <projectexplorer/target.h>
-#include <sqlitelibraryinitializer.h>
 #include <qmldesignerbase/qmldesignerbaseplugin.h>
 #include <qmljs/qmljsmodelmanagerinterface.h>
+#include <sqlite/sqlitelibraryinitializer.h>
 
 #include <utils/algorithm.h>
+#include <utils/guard.h>
 #include <utils/hostosinfo.h>
 #include <utils/mimeconstants.h>
 #include <utils/qtcassert.h>
@@ -82,9 +83,10 @@
 #include <QTimer>
 #include <QWindow>
 
-#include "nanotrace/nanotrace.h"
 #include <modelnodecontextmenu_helper.h>
 
+#include <mutex>
+
 static Q_LOGGING_CATEGORY(qmldesignerLog, "qtc.qmldesigner", QtWarningMsg)
 
 using namespace QmlDesigner::Internal;
@@ -162,7 +164,7 @@ public:
     SettingsPage settingsPage{externalDependencies};
     DesignModeWidget mainWidget;
     QtQuickDesignerFactory m_qtQuickDesignerFactory;
-    bool blockEditorChange = false;
+    Utils::Guard m_ignoreChanges;
     Utils::UniqueObjectPtr<QToolBar> toolBar;
     Utils::UniqueObjectPtr<QWidget> statusBar;
     QHash<QString, TraceIdentifierData> m_traceIdentifierDataHash;
@@ -497,7 +499,7 @@ void QmlDesignerPlugin::hideDesigner()
 
 void QmlDesignerPlugin::changeEditor()
 {
-    if (d->blockEditorChange)
+    if (d->m_ignoreChanges.isLocked())
         return;
 
     clearDesigner();
@@ -666,18 +668,12 @@ void QmlDesignerPlugin::enforceDelayedInitialize()
 
 DesignDocument *QmlDesignerPlugin::currentDesignDocument() const
 {
-    if (d)
-        return d->documentManager.currentDesignDocument();
-
-    return nullptr;
+    return d ? d->documentManager.currentDesignDocument() : nullptr;
 }
 
 Internal::DesignModeWidget *QmlDesignerPlugin::mainWidget() const
 {
-    if (d)
-        return &d->mainWidget;
-
-    return nullptr;
+    return d ? &d->mainWidget : nullptr;
 }
 
 QWidget *QmlDesignerPlugin::createProjectExplorerWidget(QWidget *parent) const
@@ -687,21 +683,15 @@ QWidget *QmlDesignerPlugin::createProjectExplorerWidget(QWidget *parent) const
 
 void QmlDesignerPlugin::switchToTextModeDeferred()
 {
-    QTimer::singleShot(0, this, [] () {
+    QTimer::singleShot(0, this, [] {
         Core::ModeManager::activateMode(Core::Constants::MODE_EDIT);
     });
 }
 
 void QmlDesignerPlugin::emitCurrentTextEditorChanged(Core::IEditor *editor)
 {
-    d->blockEditorChange = true;
+    const std::lock_guard locker(d->m_ignoreChanges);
     emit Core::EditorManager::instance()->currentEditorChanged(editor);
-    d->blockEditorChange = false;
-}
-
-void QmlDesignerPlugin::emitAssetChanged(const QString &assetPath)
-{
-    emit assetChanged(assetPath);
 }
 
 double QmlDesignerPlugin::formEditorDevicePixelRatio()
@@ -717,7 +707,7 @@ double QmlDesignerPlugin::formEditorDevicePixelRatio()
 
 void QmlDesignerPlugin::contextHelp(const Core::IContext::HelpCallback &callback, const QString &id)
 {
-    emitUsageStatisticsHelpRequested(id);
+    emitUsageStatistics(Constants::EVENT_HELP_REQUESTED + id);
     QmlDesignerPlugin::instance()->viewManager().qmlJSEditorContextHelp(callback);
 }
 
@@ -733,7 +723,7 @@ void QmlDesignerPlugin::emitUsageStatistics(const QString &identifier)
         const int currentTime = privateInstance()->timer.elapsed();
         const int currentDuration = (currentTime - activeData.time);
         if (currentDuration < activeData.maxDuration)
-            instance()->emitUsageStatisticsUsageDuration(activeData.newIdentifer, currentDuration);
+            emit instance()->usageStatisticsUsageDuration(activeData.newIdentifer, currentDuration);
 
         privateInstance()->m_activeTraceIdentifierDataHash.remove(identifier);
     }
@@ -761,11 +751,6 @@ void QmlDesignerPlugin::emitUsageStatisticsContextAction(const QString &identifi
     emitUsageStatistics(Constants::EVENT_ACTION_EXECUTED + identifier);
 }
 
-void QmlDesignerPlugin::emitUsageStatisticsHelpRequested(const QString &identifier)
-{
-    emitUsageStatistics(Constants::EVENT_HELP_REQUESTED + identifier);
-}
-
 AsynchronousImageCache &QmlDesignerPlugin::imageCache()
 {
     return m_instance->d->projectManager.asynchronousImageCache();
@@ -776,36 +761,22 @@ void QmlDesignerPlugin::registerPreviewImageProvider(QQmlEngine *engine)
     m_instance->d->projectManager.registerPreviewImageProvider(engine);
 }
 
-
-bool isParent(QWidget *parent, QWidget *widget)
-{
-    if (!widget)
-        return false;
-
-    if (widget == parent)
-        return true;
-
-    return isParent(parent, widget->parentWidget());
-}
-
 void QmlDesignerPlugin::trackWidgetFocusTime(QWidget *widget, const QString &identifier)
 {
-    connect(qApp,
-            &QApplication::focusChanged,
-            widget,
-            [widget, identifier](QWidget *from, QWidget *to) {
-                static QElapsedTimer widgetUsageTimer;
-                static QString lastIdentifier;
-                if (isParent(widget, to)) {
-                    if (!lastIdentifier.isEmpty())
-                        emitUsageStatisticsTime(lastIdentifier, widgetUsageTimer.elapsed());
-                    widgetUsageTimer.restart();
-                    lastIdentifier = identifier;
-                } else if (isParent(widget, from) && lastIdentifier == identifier) {
-                    emitUsageStatisticsTime(identifier, widgetUsageTimer.elapsed());
-                    lastIdentifier.clear();
-                }
-            });
+    connect(qApp, &QApplication::focusChanged,
+            widget, [widget, identifier](QWidget *from, QWidget *to) {
+        static QElapsedTimer widgetUsageTimer;
+        static QString lastIdentifier;
+        if (widget->isAncestorOf(to)) {
+            if (!lastIdentifier.isEmpty())
+                emitUsageStatisticsTime(lastIdentifier, widgetUsageTimer.elapsed());
+            widgetUsageTimer.restart();
+            lastIdentifier = identifier;
+        } else if (widget->isAncestorOf(from) && lastIdentifier == identifier) {
+            emitUsageStatisticsTime(identifier, widgetUsageTimer.elapsed());
+            lastIdentifier.clear();
+        }
+    });
 }
 
 void QmlDesignerPlugin::registerCombinedTracedPoints(const QString &identifierFirst,
@@ -880,14 +851,13 @@ void QmlDesignerPlugin::closeFeedbackPopup()
 
 void QmlDesignerPlugin::emitUsageStatisticsTime(const QString &identifier, int elapsed)
 {
-
     QTC_ASSERT(instance(), return);
     emit instance()->usageStatisticsUsageTimer(normalizeIdentifier(identifier), elapsed);
 }
 
 void QmlDesignerPlugin::emitUsageStatisticsUsageDuration(const QString &identifier, int elapsed)
 {
-    QTC_ASSERT(instance(), return );
+    QTC_ASSERT(instance(), return);
     emit instance()->usageStatisticsUsageDuration(identifier, elapsed);
 }
 
diff --git a/src/plugins/qmldesigner/qmldesignerplugin.h b/src/plugins/qmldesigner/qmldesignerplugin.h
index e9e8847fbe1..ebb2e2bda9c 100644
--- a/src/plugins/qmldesigner/qmldesignerplugin.h
+++ b/src/plugins/qmldesigner/qmldesignerplugin.h
@@ -66,15 +66,12 @@ public:
     void switchToTextModeDeferred();
     void emitCurrentTextEditorChanged(Core::IEditor *editor);
 
-    void emitAssetChanged(const QString &assetPath);
-
     static double formEditorDevicePixelRatio();
 
     static void contextHelp(const Core::IContext::HelpCallback &callback, const QString &id);
 
     static void emitUsageStatistics(const QString &identifier);
     static void emitUsageStatisticsContextAction(const QString &identifier);
-    static void emitUsageStatisticsHelpRequested(const QString &identifier);
     static void emitUsageStatisticsTime(const QString &identifier, int elapsed);
     static void emitUsageStatisticsUsageDuration(const QString &identifier, int elapsed);
 
diff --git a/src/plugins/qmldesigner/shortcutmanager.cpp b/src/plugins/qmldesigner/shortcutmanager.cpp
index 87a873339df..e4eeb476225 100644
--- a/src/plugins/qmldesigner/shortcutmanager.cpp
+++ b/src/plugins/qmldesigner/shortcutmanager.cpp
@@ -45,6 +45,11 @@
 
 namespace QmlDesigner {
 
+static DesignDocument *currentDesignDocument()
+{
+    return QmlDesignerPlugin::instance()->currentDesignDocument();
+}
+
 ShortCutManager::ShortCutManager()
     : QObject()
     , m_exportAsImageAction(tr("Export as &Image..."))
@@ -58,9 +63,7 @@ ShortCutManager::ShortCutManager()
     , m_duplicateAction(tr("&Duplicate"))
     , m_selectAllAction(tr("Select &All"))
     , m_escapeAction(this)
-{
-
-}
+{}
 
 void ShortCutManager::registerActions(const Core::Context &qmlDesignerMainContext,
                                       const Core::Context &qmlDesignerFormEditorContext,
@@ -327,16 +330,24 @@ void ShortCutManager::selectAll()
 void ShortCutManager::connectUndoActions(DesignDocument *designDocument)
 {
     if (designDocument) {
-        connect(designDocument, &DesignDocument::undoAvailable, this, &ShortCutManager::undoAvailable);
-        connect(designDocument, &DesignDocument::redoAvailable, this, &ShortCutManager::redoAvailable);
+        connect(designDocument, &DesignDocument::undoAvailable, this,
+                [this, designDocument](bool isAvailable) {
+            if (currentDesignDocument() == designDocument)
+                m_undoAction.setEnabled(isAvailable);
+        });
+        connect(designDocument, &DesignDocument::redoAvailable, this,
+                [this, designDocument](bool isAvailable) {
+            if (currentDesignDocument() == designDocument)
+                m_redoAction.setEnabled(isAvailable);
+        });
     }
 }
 
 void ShortCutManager::disconnectUndoActions(DesignDocument *designDocument)
 {
-    if (currentDesignDocument()) {
-        disconnect(designDocument, &DesignDocument::undoAvailable, this, &ShortCutManager::undoAvailable);
-        disconnect(designDocument, &DesignDocument::redoAvailable, this, &ShortCutManager::redoAvailable);
+    if (designDocument) {
+        disconnect(designDocument, &DesignDocument::undoAvailable, this, nullptr);
+        disconnect(designDocument, &DesignDocument::redoAvailable, this, nullptr);
     }
 }
 
@@ -351,29 +362,6 @@ void ShortCutManager::updateUndoActions(DesignDocument *designDocument)
     }
 }
 
-DesignDocument *ShortCutManager::currentDesignDocument() const
-{
-    return QmlDesignerPlugin::instance()->currentDesignDocument();
-}
-
-void ShortCutManager::undoAvailable(bool isAvailable)
-{
-    auto documentController = qobject_cast<DesignDocument*>(sender());
-    if (currentDesignDocument() &&
-        currentDesignDocument() == documentController) {
-        m_undoAction.setEnabled(isAvailable);
-    }
-}
-
-void ShortCutManager::redoAvailable(bool isAvailable)
-{
-    auto documentController = qobject_cast<DesignDocument*>(sender());
-    if (currentDesignDocument() &&
-        currentDesignDocument() == documentController) {
-        m_redoAction.setEnabled(isAvailable);
-    }
-}
-
 void ShortCutManager::goIntoComponent()
 {
     if (currentDesignDocument()
diff --git a/src/plugins/qmldesigner/shortcutmanager.h b/src/plugins/qmldesigner/shortcutmanager.h
index b97fd834ee7..70b019217ca 100644
--- a/src/plugins/qmldesigner/shortcutmanager.h
+++ b/src/plugins/qmldesigner/shortcutmanager.h
@@ -30,8 +30,6 @@ public:
     void connectUndoActions(DesignDocument *designDocument);
     void disconnectUndoActions(DesignDocument *designDocument);
     void updateUndoActions(DesignDocument *designDocument);
-    DesignDocument *currentDesignDocument() const;
-
     void updateActions(Core::IEditor* editor);
 
 private:
@@ -43,8 +41,6 @@ private:
     void duplicateSelected();
     void paste();
     void selectAll();
-    void undoAvailable(bool isAvailable);
-    void redoAvailable(bool isAvailable);
     void goIntoComponent();
 
 private:
diff --git a/src/plugins/qmldesigner/utils/filedownloader.cpp b/src/plugins/qmldesigner/utils/filedownloader.cpp
index 2b0dacea2da..e0842763624 100644
--- a/src/plugins/qmldesigner/utils/filedownloader.cpp
+++ b/src/plugins/qmldesigner/utils/filedownloader.cpp
@@ -74,7 +74,7 @@ void FileDownloader::start()
     QNetworkReply *reply = Utils::NetworkAccessManager::instance()->get(request);
     m_reply = reply;
 
-    QNetworkReply::connect(reply, &QNetworkReply::readyRead, this, [this, reply]() {
+    QNetworkReply::connect(reply, &QNetworkReply::readyRead, this, [this, reply] {
         bool isDownloadingFile = false;
         QString contentType;
         if (!reply->hasRawHeader("Content-Type")) {
@@ -115,7 +115,7 @@ void FileDownloader::start()
         emit reply->redirectAllowed();
     });
 
-    QNetworkReply::connect(reply, &QNetworkReply::finished, this, [this, reply]() {
+    QNetworkReply::connect(reply, &QNetworkReply::finished, this, [this, reply] {
         if (reply->error()) {
             if (reply->error() != QNetworkReply::OperationCanceledError) {
                 qWarning() << Q_FUNC_INFO << m_url << reply->errorString();
@@ -282,7 +282,7 @@ void FileDownloader::doProbeUrl()
         emit reply->redirectAllowed();
     });
 
-    QNetworkReply::connect(reply, &QNetworkReply::finished, this, [this, reply]() {
+    QNetworkReply::connect(reply, &QNetworkReply::finished, this, [this, reply] {
         if (reply->error())
             return;
 
@@ -295,22 +295,18 @@ void FileDownloader::doProbeUrl()
         reply->deleteLater();
     });
 
-    QNetworkReply::connect(reply,
-                           &QNetworkReply::errorOccurred,
-                           this,
-                           [this](QNetworkReply::NetworkError code) {
+    QNetworkReply::connect(reply, &QNetworkReply::errorOccurred,
+                           this, [this, reply](QNetworkReply::NetworkError code) {
+        if (QQmlData::wasDeleted(this)) {
+            qDebug() << Q_FUNC_INFO << "FileDownloader was deleted.";
+            return;
+        }
 
-                               if (QQmlData::wasDeleted(this)) {
-                                   qDebug() << Q_FUNC_INFO << "FileDownloader was deleted.";
-                                   return;
-                               }
+        qDebug() << Q_FUNC_INFO << "Network error:" << code << reply->errorString();
 
-                               qDebug() << Q_FUNC_INFO << "Network error:" << code
-                                        << qobject_cast<QNetworkReply *>(sender())->errorString();
-
-                               m_available = false;
-                               emit availableChanged();
-                           });
+        m_available = false;
+        emit availableChanged();
+    });
 }
 
 void FileDownloader::setTargetFilePath(const QString &path)
diff --git a/src/plugins/qmldesigner/utils/fileextractor.cpp b/src/plugins/qmldesigner/utils/fileextractor.cpp
index 67dc68aca90..efc72b79944 100644
--- a/src/plugins/qmldesigner/utils/fileextractor.cpp
+++ b/src/plugins/qmldesigner/utils/fileextractor.cpp
@@ -216,14 +216,16 @@ void FileExtractor::extract()
     m_targetFolder = m_targetPath.toString() + "/" + m_archiveName;
 
     // If the target directory already exists, remove it and its content
-    QDir targetDir(m_targetFolder);
-    if (targetDir.exists() && m_clearTargetPathContents)
-        targetDir.removeRecursively();
 
-    if (m_alwaysCreateDir) {
-        // Create a new directory to generate a proper creation date
-        targetDir.mkdir(m_targetFolder);
-    }
+    QTC_ASSERT(!m_targetPath.isEmpty(), return );
+
+    FilePath targetFilePath = FilePath::fromUserInput(m_targetFolder);
+    if (targetFilePath.exists() && m_clearTargetPathContents)
+        targetFilePath.removeRecursively();
+
+    // Create a new directory to generate a proper creation date
+    if (m_alwaysCreateDir)
+        targetFilePath.createDir();
 
     const auto sourceAndCommand = Unarchiver::sourceAndCommand(m_sourceFile);
     QTC_ASSERT(sourceAndCommand, return);
@@ -261,6 +263,8 @@ void FileExtractor::extract()
 void QmlDesigner::FileExtractor::removeTempTargetPath()
 {
     if (m_isTempTargetPath && m_targetPath.exists()) {
+        QTC_ASSERT(m_targetPath.toString().startsWith(QDir::tempPath()), qDebug() << m_targetPath;
+                   return );
         m_targetPath.removeRecursively();
         m_isTempTargetPath = false;
     }