diff --git a/share/qtcreator/qml/qmlpuppet/commands/puppettocreatorcommand.h b/share/qtcreator/qml/qmlpuppet/commands/puppettocreatorcommand.h
index dc125d4ead1..cfe4529ba1b 100644
--- a/share/qtcreator/qml/qmlpuppet/commands/puppettocreatorcommand.h
+++ b/share/qtcreator/qml/qmlpuppet/commands/puppettocreatorcommand.h
@@ -34,7 +34,13 @@ namespace QmlDesigner {
 class PuppetToCreatorCommand
 {
 public:
-    enum Type { Edit3DToolState, Render3DView, ActiveSceneChanged, RenderModelNodePreviewImage, None };
+    enum Type {
+        Edit3DToolState,
+        Render3DView,
+        ActiveSceneChanged,
+        RenderModelNodePreviewImage,
+        Import3DSupport,
+        None };
 
     PuppetToCreatorCommand(Type type, const QVariant &data);
     PuppetToCreatorCommand() = default;
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.cpp
new file mode 100644
index 00000000000..c7eb52158b7
--- /dev/null
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.cpp
@@ -0,0 +1,79 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "import3d.h"
+
+#ifdef IMPORT_QUICK3D_ASSETS
+#include <QtQuick3DAssetImport/private/qssgassetimportmanager_p.h>
+#endif
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QCoreApplication>
+#include <QTimer>
+#include <QScopedPointer>
+
+namespace Import3D
+{
+
+void import3D(const QString &sourceAsset, const QString &outDir, int exitId, const QString &options)
+{
+#ifdef IMPORT_QUICK3D_ASSETS
+    QScopedPointer importer {new QSSGAssetImportManager};
+
+    QJsonParseError error;
+    QJsonDocument optDoc = QJsonDocument::fromJson(options.toUtf8(), &error);
+
+    if (!optDoc.isNull() && optDoc.isObject()) {
+        QString errorStr;
+        QJsonObject optObj = optDoc.object();
+        if (importer->importFile(sourceAsset, outDir, optObj.toVariantMap(), &errorStr)
+                != QSSGAssetImportManager::ImportState::Success) {
+            qWarning() << __FUNCTION__ << "Failed to import 3D asset"
+                       << sourceAsset << "with error:" << errorStr;
+        } else {
+            // Allow little time for file operations to finish
+            QTimer::singleShot(2000, nullptr, [exitId]() {
+                qApp->exit(exitId);
+            });
+            return;
+        }
+    } else {
+        qWarning() << __FUNCTION__ << "Failed to parse import options:" << error.errorString();
+    }
+#else
+    Q_UNUSED(sourceAsset)
+    Q_UNUSED(outDir)
+    Q_UNUSED(exitId)
+    Q_UNUSED(options)
+    qWarning() << __FUNCTION__ << "Failed to parse import options, Quick3DAssetImport not available";
+#endif
+    QTimer::singleShot(0, nullptr, [exitId]() {
+        // Negative exitId means import failure
+        qApp->exit(-exitId);
+    });
+}
+
+}
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.h b/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.h
new file mode 100644
index 00000000000..eb2e4731724
--- /dev/null
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.h
@@ -0,0 +1,33 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <QString>
+
+namespace Import3D
+{
+    void import3D(const QString &sourceAsset, const QString &outDir, int id, const QString &options);
+};
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.pri b/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.pri
new file mode 100644
index 00000000000..8e4d6b6a318
--- /dev/null
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/import3d/import3d.pri
@@ -0,0 +1,3 @@
+HEADERS += $$PWD/import3d.h
+
+SOURCES += $$PWD/import3d.cpp
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri
index 448a67c913a..d0096f86609 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri
@@ -1,8 +1,14 @@
 INCLUDEPATH += $$PWD/
 
-versionAtLeast(QT_VERSION, 5.15.0):qtHaveModule(quick3d) {
-    QT *= quick3d-private
-    DEFINES *= QUICK3D_MODULE
+versionAtLeast(QT_VERSION, 5.15.0) {
+    qtHaveModule(quick3d) {
+        QT *= quick3d-private
+        DEFINES *= QUICK3D_MODULE
+    }
+    qtHaveModule(quick3dassetimport) {
+        QT *= quick3dassetimport-private
+        DEFINES *= IMPORT_QUICK3D_ASSETS
+    }
 }
 
 HEADERS += $$PWD/qt5nodeinstanceserver.h \
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.cpp
index 466bf97db8a..064d1fed1b1 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.cpp
@@ -102,6 +102,10 @@
 #endif
 #endif
 
+#ifdef IMPORT_QUICK3D_ASSETS
+#include <QtQuick3DAssetImport/private/qssgassetimportmanager_p.h>
+#endif
+
 // Uncomment to display FPS counter on the lower left corner of edit 3D view
 //#define FPS_COUNTER
 #ifdef FPS_COUNTER
@@ -253,6 +257,37 @@ void Qt5InformationNodeInstanceServer::handleInputEvents()
     }
 }
 
+void Qt5InformationNodeInstanceServer::resolveImportSupport()
+{
+#ifdef IMPORT_QUICK3D_ASSETS
+    QSSGAssetImportManager importManager;
+    const QHash<QString, QStringList> supportedExtensions = importManager.getSupportedExtensions();
+    const QHash<QString, QVariantMap> supportedOptions = importManager.getAllOptions();
+
+    QVariantMap supportMap;
+
+    QVariantMap extMap;
+    auto itExt = supportedExtensions.constBegin();
+    while (itExt != supportedExtensions.constEnd()) {
+        extMap.insert(itExt.key(), itExt.value());
+        ++itExt;
+    }
+
+    QVariantMap optMap;
+    auto itOpt = supportedOptions.constBegin();
+    while (itOpt != supportedOptions.constEnd()) {
+        optMap.insert(itOpt.key(), itOpt.value());
+        ++itOpt;
+    }
+
+    supportMap.insert("options", optMap);
+    supportMap.insert("extensions", extMap);
+    nodeInstanceClient()->handlePuppetToCreatorCommand(
+                {PuppetToCreatorCommand::Import3DSupport, QVariant(supportMap)});
+
+#endif
+}
+
 void Qt5InformationNodeInstanceServer::createEditView3D()
 {
 #ifdef QUICK3D_MODULE
@@ -1462,6 +1497,9 @@ void Qt5InformationNodeInstanceServer::createScene(const CreateSceneCommand &com
 
     QObject::connect(&m_renderModelNodeImageViewTimer, &QTimer::timeout,
                      this, &Qt5InformationNodeInstanceServer::doRenderModelNodeImageView);
+#ifdef IMPORT_QUICK3D_ASSETS
+    QTimer::singleShot(0, this, &Qt5InformationNodeInstanceServer::resolveImportSupport);
+#endif
 }
 
 void Qt5InformationNodeInstanceServer::sendChildrenChangedCommand(const QList<ServerNodeInstance> &childList)
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.h b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.h
index 353f57b3fc4..55a07379b4e 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.h
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5informationnodeinstanceserver.h
@@ -131,6 +131,7 @@ private:
     void doRenderModelNode2DImageView();
     void updateLockedAndHiddenStates(const QSet<ServerNodeInstance> &instances);
     void handleInputEvents();
+    void resolveImportSupport();
 
     void createAuxiliaryQuickView(const QUrl &url, RenderViewData &viewData);
 
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppet.pri b/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppet.pri
index 940047c6b2c..189324f478e 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppet.pri
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppet.pri
@@ -24,6 +24,7 @@ include (../interfaces/interfaces.pri)
 include (../types/types.pri)
 include (../qmlprivategate/qmlprivategate.pri)
 include (iconrenderer/iconrenderer.pri)
+include (import3d/import3d.pri)
 
 SOURCES +=  $$PWD/qml2puppetmain.cpp
 RESOURCES +=  $$PWD/../qmlpuppet.qrc
diff --git a/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppetmain.cpp b/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppetmain.cpp
index e690adf75ae..30aec5b0c99 100644
--- a/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppetmain.cpp
+++ b/share/qtcreator/qml/qmlpuppet/qml2puppet/qml2puppetmain.cpp
@@ -35,6 +35,7 @@
 #include <stdlib.h>
 
 #include "iconrenderer/iconrenderer.h"
+#include "import3d/import3d.h"
 #include <qt5nodeinstanceclientproxy.h>
 
 #include <QQmlComponent>
@@ -152,12 +153,14 @@ int internalMain(QGuiApplication *application)
 
     if (application->arguments().count() < 2
             || (application->arguments().at(1) == "--readcapturedstream" && application->arguments().count() < 3)
-            || (application->arguments().at(1) == "--rendericon" && application->arguments().count() < 5)) {
+            || (application->arguments().at(1) == "--rendericon" && application->arguments().count() < 5)
+            || (application->arguments().at(1) == "--import3dAsset" && application->arguments().count() < 6)) {
         qDebug() << "Usage:\n";
         qDebug() << "--test";
         qDebug() << "--version";
         qDebug() << "--readcapturedstream <stream file> [control stream file]";
         qDebug() << "--rendericon <icon size> <icon file name> <icon source qml>";
+        qDebug() << "--import3dAsset <source asset file name> <output dir> <id number> <import options JSON>";
 
         return -1;
     }
@@ -220,6 +223,17 @@ int internalMain(QGuiApplication *application)
         return application->exec();
     }
 
+    if (application->arguments().at(1) == "--import3dAsset") {
+        QString sourceAsset = application->arguments().at(2);
+        QString outDir = application->arguments().at(3);
+        int exitId = application->arguments().at(4).toInt();
+        QString options = application->arguments().at(5);
+
+        Import3D::import3D(sourceAsset, outDir, exitId, options);
+
+        return application->exec();
+    }
+
 #ifdef ENABLE_QT_BREAKPAD
     const QString libexecPath = QCoreApplication::applicationDirPath() + '/' + RELATIVE_LIBEXEC_PATH;
     QtSystemExceptionHandler systemExceptionHandler(libexecPath);
diff --git a/src/plugins/qmldesigner/CMakeLists.txt b/src/plugins/qmldesigner/CMakeLists.txt
index 1f35535bd04..72fb68836cc 100644
--- a/src/plugins/qmldesigner/CMakeLists.txt
+++ b/src/plugins/qmldesigner/CMakeLists.txt
@@ -326,14 +326,6 @@ extend_qtc_plugin(QmlDesigner
     itemlibraryiconimageprovider.cpp itemlibraryiconimageprovider.h
 )
 
-find_package(Qt5 COMPONENTS Quick3DAssetImport QUIET)
-extend_qtc_plugin(QmlDesigner
-  CONDITION TARGET Qt5::Quick3DAssetImport
-  FEATURE_INFO "Qt Quick 3D asset import"
-  DEPENDS Qt5::Quick3DAssetImportPrivate
-  DEFINES IMPORT_QUICK3D_ASSETS
-)
-
 extend_qtc_plugin(QmlDesigner
   SOURCES_PREFIX components/navigator
   SOURCES
diff --git a/src/plugins/qmldesigner/components/componentcore/designeractionmanager.cpp b/src/plugins/qmldesigner/components/componentcore/designeractionmanager.cpp
index d51b3844723..d8c21fecffe 100644
--- a/src/plugins/qmldesigner/components/componentcore/designeractionmanager.cpp
+++ b/src/plugins/qmldesigner/components/componentcore/designeractionmanager.cpp
@@ -199,6 +199,15 @@ void DesignerActionManager::registerAddResourceHandler(const AddResourceHandler
     m_addResourceHandler.append(handler);
 }
 
+void DesignerActionManager::unregisterAddResourceHandlers(const QString &category)
+{
+    for (int i = m_addResourceHandler.size() - 1; i >= 0 ; --i) {
+        const AddResourceHandler &handler = m_addResourceHandler[i];
+        if (handler.category == category)
+            m_addResourceHandler.removeAt(i);
+    }
+}
+
 void DesignerActionManager::registerModelNodePreviewHandler(const ModelNodePreviewImageHandler &handler)
 {
     m_modelNodePreviewImageHandlers.append(handler);
diff --git a/src/plugins/qmldesigner/components/componentcore/designeractionmanager.h b/src/plugins/qmldesigner/components/componentcore/designeractionmanager.h
index 66109d16402..bf7ab60017f 100644
--- a/src/plugins/qmldesigner/components/componentcore/designeractionmanager.h
+++ b/src/plugins/qmldesigner/components/componentcore/designeractionmanager.h
@@ -129,6 +129,7 @@ public:
 
     QList<AddResourceHandler> addResourceHandler() const;
     void registerAddResourceHandler(const AddResourceHandler &handler);
+    void unregisterAddResourceHandlers(const QString &category);
 
     void registerModelNodePreviewHandler(const ModelNodePreviewImageHandler &handler);
     bool hasModelNodePreviewHandler(const ModelNode &node) const;
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibrary.pri b/src/plugins/qmldesigner/components/itemlibrary/itemlibrary.pri
index 8eaa9ce983f..bb4ebaa5bb3 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibrary.pri
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibrary.pri
@@ -1,10 +1,5 @@
 VPATH += $$PWD
 
-qtHaveModule(quick3dassetimport) {
-    QT *= quick3dassetimport-private
-    DEFINES *= IMPORT_QUICK3D_ASSETS
-}
-
 # Input
 HEADERS += itemlibraryview.h \
            $$PWD/itemlibraryiconimageprovider.h \
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimportdialog.cpp b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimportdialog.cpp
index af2a34de7c4..e49ffbb9bf0 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimportdialog.cpp
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimportdialog.cpp
@@ -71,10 +71,13 @@ static const int rowHeight = 26;
 }
 
 ItemLibraryAssetImportDialog::ItemLibraryAssetImportDialog(const QStringList &importFiles,
-                                     const QString &defaulTargetDirectory, QWidget *parent) :
-    QDialog(parent),
-    ui(new Ui::ItemLibraryAssetImportDialog),
-    m_importer(this)
+                                                           const QString &defaulTargetDirectory,
+                                                           const QVariantMap &supportedExts,
+                                                           const QVariantMap &supportedOpts,
+                                                           QWidget *parent) :
+    QDialog(parent)
+    , ui(new Ui::ItemLibraryAssetImportDialog)
+    , m_importer(this)
 {
     setModal(true);
     ui->setupUi(this);
@@ -83,15 +86,24 @@ ItemLibraryAssetImportDialog::ItemLibraryAssetImportDialog(const QStringList &im
     m_outputFormatter->setPlainTextEdit(ui->plainTextEdit);
 
     // Skip unsupported assets
-    bool skipSome = false;
+    QHash<QString, bool> supportMap;
     for (const auto &file : importFiles) {
-        if (m_importer.isQuick3DAsset(file))
+        QString suffix = QFileInfo(file).suffix();
+        if (!supportMap.contains(suffix)) {
+            bool supported = false;
+            for (const auto &exts : supportedExts) {
+                if (exts.toStringList().contains(suffix)) {
+                    supported = true;
+                    break;
+                }
+            }
+            supportMap.insert(suffix, supported);
+        }
+        if (supportMap[suffix])
             m_quick3DFiles << file;
-        else
-            skipSome = true;
     }
 
-    if (skipSome)
+    if (m_quick3DFiles.size() != importFiles.size())
         addWarning("Cannot import 3D and other assets simultaneously. Skipping non-3D assets.");
 
     ui->buttonBox->button(QDialogButtonBox::Ok)->setText(tr("Import"));
@@ -153,14 +165,12 @@ ItemLibraryAssetImportDialog::ItemLibraryAssetImportDialog(const QStringList &im
     m_quick3DImportPath = candidatePath;
 
     if (!m_quick3DFiles.isEmpty()) {
-        const QHash<QString, QVariantMap> allOptions = m_importer.allOptions();
-        const QHash<QString, QStringList> supportedExtensions = m_importer.supportedExtensions();
         QVector<QJsonObject> groups;
 
-        auto optIt = allOptions.constBegin();
+        auto optIt = supportedOpts.constBegin();
         int optIndex = 0;
-        while (optIt != allOptions.constEnd()) {
-            QJsonObject options = QJsonObject::fromVariantMap(optIt.value());
+        while (optIt != supportedOpts.constEnd()) {
+            QJsonObject options = QJsonObject::fromVariantMap(qvariant_cast<QVariantMap>(optIt.value()));
             m_importOptions << options.value("options").toObject();
             groups << options.value("groups").toObject();
             const auto &exts = optIt.key().split(':');
@@ -173,10 +183,10 @@ ItemLibraryAssetImportDialog::ItemLibraryAssetImportDialog(const QStringList &im
         // Create tab for each supported extension group that also has files included in the import
         QMap<QString, int> tabMap; // QMap used for alphabetical order
         for (const auto &file : qAsConst(m_quick3DFiles)) {
-            auto extIt = supportedExtensions.constBegin();
+            auto extIt = supportedExts.constBegin();
             QString ext = QFileInfo(file).suffix().toLower();
-            while (extIt != supportedExtensions.constEnd()) {
-                if (!tabMap.contains(extIt.key()) && extIt.value().contains(ext)) {
+            while (extIt != supportedExts.constEnd()) {
+                if (!tabMap.contains(extIt.key()) && extIt.value().toStringList().contains(ext)) {
                     tabMap.insert(extIt.key(), m_extToImportOptionsMap.value(ext));
                     break;
                 }
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimportdialog.h b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimportdialog.h
index 713e3fd20b4..3d4069986ec 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimportdialog.h
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimportdialog.h
@@ -46,7 +46,10 @@ class ItemLibraryAssetImportDialog : public QDialog
 
 public:
     explicit ItemLibraryAssetImportDialog(const QStringList &importFiles,
-                               const QString &defaulTargetDirectory, QWidget *parent = nullptr);
+                                          const QString &defaulTargetDirectory,
+                                          const QVariantMap &supportedExts,
+                                          const QVariantMap &supportedOpts,
+                                          QWidget *parent = nullptr);
     ~ItemLibraryAssetImportDialog();
 
 protected:
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.cpp b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.cpp
index 23ab98d1ab0..bb510674acd 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.cpp
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.cpp
@@ -30,18 +30,15 @@
 #include "model.h"
 #include "puppetcreator.h"
 
-#include <QtCore/qdir.h>
-#include <QtCore/qdiriterator.h>
-#include <QtCore/qsavefile.h>
-#include <QtCore/qfile.h>
-#include <QtCore/qloggingcategory.h>
-#include <QtCore/qtemporarydir.h>
-#include <QtWidgets/qapplication.h>
-#include <QtWidgets/qmessagebox.h>
-
-#ifdef IMPORT_QUICK3D_ASSETS
-#include <QtQuick3DAssetImport/private/qssgassetimportmanager_p.h>
-#endif
+#include <QDir>
+#include <QDirIterator>
+#include <QSaveFile>
+#include <QFile>
+#include <QLoggingCategory>
+#include <QTemporaryDir>
+#include <QApplication>
+#include <QMessageBox>
+#include <QJsonDocument>
 
 namespace
 {
@@ -53,9 +50,6 @@ namespace QmlDesigner {
 ItemLibraryAssetImporter::ItemLibraryAssetImporter(QObject *parent) :
     QObject (parent)
 {
-#ifdef IMPORT_QUICK3D_ASSETS
-    m_quick3DAssetImporter.reset(new QSSGAssetImportManager);
-#endif
 }
 
 ItemLibraryAssetImporter::~ItemLibraryAssetImporter() {
@@ -73,7 +67,6 @@ void ItemLibraryAssetImporter::importQuick3D(const QStringList &inputFiles,
     reset();
     m_isImporting = true;
 
-#ifdef IMPORT_QUICK3D_ASSETS
     if (!m_tempDir->isValid()) {
         addError(tr("Could not create a temporary directory for import."));
         notifyFinished();
@@ -85,24 +78,27 @@ void ItemLibraryAssetImporter::importQuick3D(const QStringList &inputFiles,
     parseFiles(inputFiles, options, extToImportOptionsMap);
 
     if (!isCancelled()) {
-        // Wait for icon generation processes to finish
+        const auto parseData = m_parseData;
+        for (const auto &pd : parseData) {
+            if (!startImportProcess(pd)) {
+                addError(tr("Failed to start import 3D asset process"),
+                         pd.sourceInfo.absoluteFilePath());
+                m_parseData.remove(pd.importId);
+            }
+        }
+    }
+
+    if (!isCancelled()) {
+        // Wait for puppet processes to finish
         if (m_qmlPuppetProcesses.empty()) {
-            finalizeQuick3DImport();
+            postImport();
         } else {
             m_qmlPuppetCount = static_cast<int>(m_qmlPuppetProcesses.size());
-            const QString progressTitle = tr("Generating icons.");
+            const QString progressTitle = tr("Importing 3D assets.");
             addInfo(progressTitle);
             notifyProgress(0, progressTitle);
         }
     }
-#else
-    Q_UNUSED(inputFiles)
-    Q_UNUSED(importPath)
-    Q_UNUSED(options)
-    Q_UNUSED(extToImportOptionsMap)
-    addError(tr("Importing 3D assets requires building against Qt Quick 3D module."));
-    notifyFinished();
-#endif
 }
 
 bool ItemLibraryAssetImporter::isImporting() const
@@ -135,67 +131,47 @@ void ItemLibraryAssetImporter::addInfo(const QString &infoMsg, const QString &sr
     emit infoReported(infoMsg, srcPath);
 }
 
-bool ItemLibraryAssetImporter::isQuick3DAsset(const QString &fileName) const
+void ItemLibraryAssetImporter::importProcessFinished(int exitCode, QProcess::ExitStatus exitStatus)
 {
-#ifdef IMPORT_QUICK3D_ASSETS
-    static QStringList quick3DExt;
-    if (quick3DExt.isEmpty()) {
-        const auto exts = m_quick3DAssetImporter->getSupportedExtensions();
-        for (const auto &ext : exts)
-            quick3DExt << ext;
+    Q_UNUSED(exitStatus)
+
+    ++m_qmlImportFinishedCount;
+
+    m_qmlPuppetProcesses.erase(
+        std::remove_if(m_qmlPuppetProcesses.begin(), m_qmlPuppetProcesses.end(),
+                       [&](const auto &entry) {
+        return !entry || entry->state() == QProcess::NotRunning;
+    }));
+
+    if (m_parseData.contains(-exitCode)) {
+        const ParseData pd = m_parseData.take(-exitCode);
+        addError(tr("Asset import process failed for: \"%1\"").arg(pd.sourceInfo.absoluteFilePath()));
+    }
+
+    if (m_qmlImportFinishedCount == m_qmlPuppetCount) {
+        notifyProgress(100);
+        QTimer::singleShot(0, this, &ItemLibraryAssetImporter::postImport);
+    } else {
+        notifyProgress(int(100. * (double(m_qmlImportFinishedCount) / double(m_qmlPuppetCount))));
     }
-    return quick3DExt.contains(QFileInfo(fileName).suffix().toLower());
-#else
-    Q_UNUSED(fileName)
-    return false;
-#endif
 }
 
-QVariantMap ItemLibraryAssetImporter::supportedOptions(const QString &modelFile) const
-{
-#ifdef IMPORT_QUICK3D_ASSETS
-    return m_quick3DAssetImporter->getOptionsForFile(modelFile);
-#else
-    Q_UNUSED(modelFile)
-    return {};
-#endif
-}
-
-QHash<QString, QVariantMap> ItemLibraryAssetImporter::allOptions() const
-{
-#ifdef IMPORT_QUICK3D_ASSETS
-    return m_quick3DAssetImporter->getAllOptions();
-#else
-    return {};
-#endif
-}
-
-QHash<QString, QStringList> ItemLibraryAssetImporter::supportedExtensions() const
-{
-#ifdef IMPORT_QUICK3D_ASSETS
-    return m_quick3DAssetImporter->getSupportedExtensions();
-#else
-    return {};
-#endif
-}
-
-void ItemLibraryAssetImporter::processFinished(int exitCode, QProcess::ExitStatus exitStatus)
+void ItemLibraryAssetImporter::iconProcessFinished(int exitCode, QProcess::ExitStatus exitStatus)
 {
     Q_UNUSED(exitCode)
     Q_UNUSED(exitStatus)
 
     m_qmlPuppetProcesses.erase(
-        std::remove_if(m_qmlPuppetProcesses.begin(), m_qmlPuppetProcesses.end(), [&](const auto &entry) {
+        std::remove_if(m_qmlPuppetProcesses.begin(), m_qmlPuppetProcesses.end(),
+                       [&](const auto &entry) {
         return !entry || entry->state() == QProcess::NotRunning;
     }));
 
-    const QString progressTitle = tr("Generating icons.");
     if (m_qmlPuppetProcesses.empty()) {
-        notifyProgress(100, progressTitle);
-        finalizeQuick3DImport();
+        notifyProgress(100);
+        QTimer::singleShot(0, this, &ItemLibraryAssetImporter::finalizeQuick3DImport);
     } else {
-        notifyProgress(int(100. * (1. - double(m_qmlPuppetCount) / double(m_qmlPuppetProcesses.size()))),
-                       progressTitle);
+        notifyProgress(int(100. * (1. - (double(m_qmlPuppetProcesses.size()) / double(m_qmlPuppetCount)))));
     }
 }
 
@@ -210,14 +186,14 @@ void ItemLibraryAssetImporter::reset()
     m_isImporting = false;
     m_cancelled = false;
 
-#ifdef IMPORT_QUICK3D_ASSETS
     delete m_tempDir;
     m_tempDir = new QTemporaryDir;
     m_importFiles.clear();
     m_overwrittenImports.clear();
     m_qmlPuppetProcesses.clear();
     m_qmlPuppetCount = 0;
-#endif
+    m_qmlImportFinishedCount = 0;
+    m_parseData.clear();
 }
 
 void ItemLibraryAssetImporter::parseFiles(const QStringList &filePaths,
@@ -235,99 +211,86 @@ void ItemLibraryAssetImporter::parseFiles(const QStringList &filePaths,
         notifyProgress(qRound(quota * (count + value)), progressTitle);
     };
     for (const QString &file : filePaths) {
-        if (isCancelled())
-            return;
-        if (isQuick3DAsset(file)) {
-            int index = extToImportOptionsMap.value(QFileInfo(file).suffix());
-            parseQuick3DAsset(file, options[index].toVariantMap());
+        int index = extToImportOptionsMap.value(QFileInfo(file).suffix());
+        ParseData pd;
+        pd.options = options[index];
+        if (preParseQuick3DAsset(file, pd)) {
+            pd.importId = ++m_importIdCounter;
+            m_parseData.insert(pd.importId, pd);
         }
         notifyProgress(qRound(++count * quota), progressTitle);
     }
-    notifyProgress(100, progressTitle);
 }
 
-void ItemLibraryAssetImporter::parseQuick3DAsset(const QString &file, const QVariantMap &options)
+bool ItemLibraryAssetImporter::preParseQuick3DAsset(const QString &file, ParseData &pd)
 {
-#ifdef IMPORT_QUICK3D_ASSETS
-    addInfo(tr("Parsing 3D Model"), file);
+    pd.targetDir = QDir(m_importPath);
+    pd.outDir = QDir(m_tempDir->path());
+    pd.sourceInfo = QFileInfo(file);
+    pd.assetName = pd.sourceInfo.completeBaseName();
 
-    QString errorString;
-
-    QDir targetDir(m_importPath);
-    QDir outDir(m_tempDir->path());
-    QFileInfo sourceInfo(file);
-    QString assetName = sourceInfo.completeBaseName();
-
-    if (!assetName.isEmpty()) {
+    if (!pd.assetName.isEmpty()) {
         // Fix name so it plays nice with imports
-        for (QChar &currentChar : assetName) {
+        for (QChar &currentChar : pd.assetName) {
             if (!currentChar.isLetter() && !currentChar.isDigit())
                 currentChar = QLatin1Char('_');
         }
-        const QChar firstChar = assetName[0];
+        const QChar firstChar = pd.assetName[0];
         if (firstChar.isDigit())
-            assetName[0] = QLatin1Char('_');
+            pd.assetName[0] = QLatin1Char('_');
         if (firstChar.isLower())
-            assetName[0] = firstChar.toUpper();
+            pd.assetName[0] = firstChar.toUpper();
     }
 
-    QString targetDirPath = targetDir.filePath(assetName);
+    pd.targetDirPath = pd.targetDir.filePath(pd.assetName);
 
-    if (outDir.exists(assetName)) {
-        addWarning(tr("Skipped import of duplicate asset: \"%1\"").arg(assetName));
-        return;
+    if (pd.outDir.exists(pd.assetName)) {
+        addWarning(tr("Skipped import of duplicate asset: \"%1\"").arg(pd.assetName));
+        return false;
     }
 
-    QString originalAssetName = assetName;
-    if (targetDir.exists(assetName)) {
+    pd.originalAssetName = pd.assetName;
+    if (pd.targetDir.exists(pd.assetName)) {
         // If we have a file system with case insensitive filenames, assetName may be
         // different from the existing name. Modify assetName to ensure exact match to
         // the overwritten old asset capitalization
-        const QStringList assetDirs = targetDir.entryList({assetName}, QDir::Dirs);
+        const QStringList assetDirs = pd.targetDir.entryList({pd.assetName}, QDir::Dirs);
         if (assetDirs.size() == 1) {
-            assetName = assetDirs[0];
-            targetDirPath = targetDir.filePath(assetName);
+            pd.assetName = assetDirs[0];
+            pd.targetDirPath = pd.targetDir.filePath(pd.assetName);
         }
-        if (!confirmAssetOverwrite(assetName)) {
-            addWarning(tr("Skipped import of existing asset: \"%1\"").arg(assetName));
-            return;
+        if (!confirmAssetOverwrite(pd.assetName)) {
+            addWarning(tr("Skipped import of existing asset: \"%1\"").arg(pd.assetName));
+            return false;
         }
-        m_overwrittenImports << targetDirPath;
+        m_overwrittenImports << pd.targetDirPath;
     }
 
-    outDir.mkpath(assetName);
+    pd.outDir.mkpath(pd.assetName);
 
-    if (!outDir.cd(assetName)) {
+    if (!pd.outDir.cd(pd.assetName)) {
         addError(tr("Could not access temporary asset directory: \"%1\"")
-                 .arg(outDir.filePath(assetName)));
-        return;
+                 .arg(pd.outDir.filePath(pd.assetName)));
+        return false;
     }
+    return true;
+}
 
-    addInfo(tr("Generating 3D assets for: \"%1\"").arg(targetDir.absoluteFilePath(assetName)));
-
-    if (m_quick3DAssetImporter->importFile(
-                sourceInfo.absoluteFilePath(), outDir, options, &errorString)
-            != QSSGAssetImportManager::ImportState::Success) {
-        addError(tr("Failed to import 3D asset with error: %1").arg(errorString),
-                 sourceInfo.absoluteFilePath());
-        return;
-    }
-
-    // The importer is reset after every import to avoid issues with it caching various things
-    m_quick3DAssetImporter.reset(new QSSGAssetImportManager);
-
-    if (originalAssetName != assetName) {
+void ItemLibraryAssetImporter::postParseQuick3DAsset(const ParseData &pd)
+{
+    QDir outDir = pd.outDir;
+    if (pd.originalAssetName != pd.assetName) {
         // Fix the generated qml file name
-        const QString assetQml = originalAssetName + ".qml";
+        const QString assetQml = pd.originalAssetName + ".qml";
         if (outDir.exists(assetQml))
-            outDir.rename(assetQml, assetName + ".qml");
+            outDir.rename(assetQml, pd.assetName + ".qml");
     }
 
     QHash<QString, QString> assetFiles;
     const int outDirPathSize = outDir.path().size();
     auto insertAsset = [&](const QString &filePath) {
         QString targetPath = filePath.mid(outDirPathSize);
-        targetPath.prepend(targetDirPath);
+        targetPath.prepend(pd.targetDirPath);
         assetFiles.insert(filePath, targetPath);
     };
 
@@ -348,7 +311,7 @@ void ItemLibraryAssetImporter::parseQuick3DAsset(const QString &file, const QVar
                 qmlInfo.append("module ");
                 qmlInfo.append(m_importPath.split('/').last());
                 qmlInfo.append(".");
-                qmlInfo.append(assetName);
+                qmlInfo.append(pd.assetName);
                 qmlInfo.append('\n');
                 while (qmlIt.hasNext()) {
                     qmlIt.next();
@@ -382,7 +345,7 @@ void ItemLibraryAssetImporter::parseQuick3DAsset(const QString &file, const QVar
                                 out << "canBeDroppedInView3D: true" << Qt::endl;
                                 file.close();
                             }
-                            if (generateComponentIcon(24, iconFileName, qmlIt.filePath())) {
+                            if (startIconProcess(24, iconFileName, qmlIt.filePath())) {
                                 // Since icon is generated by external process, the file won't be
                                 // ready for asset gathering below, so assume its generation succeeds
                                 // and add it now.
@@ -395,7 +358,7 @@ void ItemLibraryAssetImporter::parseQuick3DAsset(const QString &file, const QVar
                 qmldirFile.write(qmlInfo.toUtf8());
                 qmldirFile.commit();
             } else {
-                addError(tr("Failed to create qmldir file for asset: \"%1\"").arg(assetName));
+                addError(tr("Failed to create qmldir file for asset: \"%1\"").arg(pd.assetName));
             }
         }
     }
@@ -408,19 +371,13 @@ void ItemLibraryAssetImporter::parseQuick3DAsset(const QString &file, const QVar
     }
 
     // Copy the original asset into a subdirectory
-    assetFiles.insert(sourceInfo.absoluteFilePath(),
-                      targetDirPath + QStringLiteral("/source scene/") + sourceInfo.fileName());
+    assetFiles.insert(pd.sourceInfo.absoluteFilePath(),
+                      pd.targetDirPath + QStringLiteral("/source scene/") + pd.sourceInfo.fileName());
     m_importFiles.insert(assetFiles);
-
-#else
-    Q_UNUSED(file)
-    Q_UNUSED(options)
-#endif
 }
 
 void ItemLibraryAssetImporter::copyImportedFiles()
 {
-#ifdef IMPORT_QUICK3D_ASSETS
     if (!m_overwrittenImports.isEmpty()) {
         const QString progressTitle = tr("Removing old overwritten assets.");
         addInfo(progressTitle);
@@ -461,15 +418,20 @@ void ItemLibraryAssetImporter::copyImportedFiles()
         }
         notifyProgress(100, progressTitle);
     }
-#endif
 }
 
-void ItemLibraryAssetImporter::notifyProgress(int value, const QString &text) const
+void ItemLibraryAssetImporter::notifyProgress(int value, const QString &text)
 {
-    emit progressChanged(value, text);
+    m_progressTitle = text;
+    emit progressChanged(value, m_progressTitle);
     keepUiAlive();
 }
 
+void ItemLibraryAssetImporter::notifyProgress(int value)
+{
+    notifyProgress(value, m_progressTitle);
+}
+
 void ItemLibraryAssetImporter::keepUiAlive() const
 {
     QApplication::processEvents();
@@ -484,8 +446,42 @@ bool ItemLibraryAssetImporter::confirmAssetOverwrite(const QString &assetName)
                                  QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes;
 }
 
-bool ItemLibraryAssetImporter::generateComponentIcon(int size, const QString &iconFile,
-                                                     const QString &iconSource)
+bool ItemLibraryAssetImporter::startImportProcess(const ParseData &pd)
+{
+    auto doc = QmlDesignerPlugin::instance()->currentDesignDocument();
+    Model *model = doc ? doc->currentModel() : nullptr;
+
+    if (model) {
+        PuppetCreator puppetCreator(doc->currentTarget(), model);
+        puppetCreator.createQml2PuppetExecutableIfMissing();
+        QStringList puppetArgs;
+        QJsonDocument optDoc(pd.options);
+
+        puppetArgs << "--import3dAsset" << pd.sourceInfo.absoluteFilePath()
+                   << pd.outDir.absolutePath() << QString::number(pd.importId)
+                   << QString::fromUtf8(optDoc.toJson());
+
+        QProcessUniquePointer process = puppetCreator.createPuppetProcess(
+            "custom",
+            {},
+            std::function<void()>(),
+            [&](int exitCode, QProcess::ExitStatus exitStatus) {
+                importProcessFinished(exitCode, exitStatus);
+            },
+            puppetArgs);
+
+        if (process->waitForStarted(5000)) {
+            m_qmlPuppetProcesses.push_back(std::move(process));
+            return true;
+        } else {
+            process.reset();
+        }
+    }
+    return false;
+}
+
+bool ItemLibraryAssetImporter::startIconProcess(int size, const QString &iconFile,
+                                                const QString &iconSource)
 {
     auto doc = QmlDesignerPlugin::instance()->currentDesignDocument();
     Model *model = doc ? doc->currentModel() : nullptr;
@@ -500,7 +496,7 @@ bool ItemLibraryAssetImporter::generateComponentIcon(int size, const QString &ic
             {},
             std::function<void()>(),
             [&](int exitCode, QProcess::ExitStatus exitStatus) {
-                processFinished(exitCode, exitStatus);
+                iconProcessFinished(exitCode, exitStatus);
             },
             puppetArgs);
 
@@ -514,9 +510,30 @@ bool ItemLibraryAssetImporter::generateComponentIcon(int size, const QString &ic
     return false;
 }
 
+void ItemLibraryAssetImporter::postImport()
+{
+    Q_ASSERT(m_qmlPuppetProcesses.empty());
+
+    if (!isCancelled()) {
+        for (const auto &pd : qAsConst(m_parseData))
+            postParseQuick3DAsset(pd);
+    }
+
+    if (!isCancelled()) {
+        // Wait for icon generation processes to finish
+        if (m_qmlPuppetProcesses.empty()) {
+            finalizeQuick3DImport();
+        } else {
+            m_qmlPuppetCount = static_cast<int>(m_qmlPuppetProcesses.size());
+            const QString progressTitle = tr("Generating icons.");
+            addInfo(progressTitle);
+            notifyProgress(0, progressTitle);
+        }
+    }
+}
+
 void ItemLibraryAssetImporter::finalizeQuick3DImport()
 {
-#ifdef IMPORT_QUICK3D_ASSETS
     if (!isCancelled()) {
         // Don't allow cancel anymore as existing asset overwrites are not trivially recoverable.
         // Also, on Windows at least you can't delete a subdirectory of a watched directory,
@@ -562,7 +579,6 @@ void ItemLibraryAssetImporter::finalizeQuick3DImport()
             notifyFinished();
         }
     }
-#endif
 }
 
 bool ItemLibraryAssetImporter::isCancelled() const
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.h b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.h
index 59211441519..a0a759a2307 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.h
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.h
@@ -29,11 +29,13 @@
 #include <qprocessuniqueptr.h>
 
 #include <QSet>
-#include <QtCore/qhash.h>
-#include <QtCore/qjsonobject.h>
-#include <QtCore/qobject.h>
-#include <QtCore/qprocess.h>
-#include <QtCore/qstringlist.h>
+#include <QHash>
+#include <QJsonObject>
+#include <QObject>
+#include <QProcess>
+#include <QStringList>
+#include <QDir>
+#include <QFileInfo>
 
 QT_BEGIN_NAMESPACE
 class QSSGAssetImportManager;
@@ -62,11 +64,6 @@ public:
     void addWarning(const QString &warningMsg, const QString &srcPath = {}) const;
     void addInfo(const QString &infoMsg, const QString &srcPath = {}) const;
 
-    bool isQuick3DAsset(const QString &fileName) const;
-    QVariantMap supportedOptions(const QString &modelFile) const;
-    QHash<QString, QVariantMap> allOptions() const;
-    QHash<QString, QStringList> supportedExtensions() const;
-
 signals:
     void errorReported(const QString &, const QString &) const;
     void warningReported(const QString &, const QString &) const;
@@ -76,32 +73,49 @@ signals:
     void importFinished();
 
 private slots:
-    void processFinished(int exitCode, QProcess::ExitStatus exitStatus);
+    void importProcessFinished(int exitCode, QProcess::ExitStatus exitStatus);
+    void iconProcessFinished(int exitCode, QProcess::ExitStatus exitStatus);
 
 private:
+    struct ParseData {
+        QJsonObject options;
+        QDir targetDir;
+        QDir outDir;
+        QString targetDirPath;
+        QFileInfo sourceInfo;
+        QString assetName;
+        QString originalAssetName;
+        int importId;
+    };
+
     void notifyFinished();
     void reset();
     void parseFiles(const QStringList &filePaths, const QVector<QJsonObject> &options,
                     const QHash<QString, int> &extToImportOptionsMap);
-    void parseQuick3DAsset(const QString &file, const QVariantMap &options);
+    bool preParseQuick3DAsset(const QString &file, ParseData &pd);
+    void postParseQuick3DAsset(const ParseData &pd);
     void copyImportedFiles();
 
-    void notifyProgress(int value, const QString &text) const;
+    void notifyProgress(int value, const QString &text);
+    void notifyProgress(int value);
     void keepUiAlive() const;
     bool confirmAssetOverwrite(const QString &assetName);
-    bool generateComponentIcon(int size, const QString &iconFile, const QString &iconSource);
+    bool startImportProcess(const ParseData &pd);
+    bool startIconProcess(int size, const QString &iconFile, const QString &iconSource);
+    void postImport();
     void finalizeQuick3DImport();
 
-#ifdef IMPORT_QUICK3D_ASSETS
-    QScopedPointer<QSSGAssetImportManager> m_quick3DAssetImporter;
     QSet<QHash<QString, QString>> m_importFiles;
     QSet<QString> m_overwrittenImports;
-#endif
     bool m_isImporting = false;
     bool m_cancelled = false;
     QString m_importPath;
     QTemporaryDir *m_tempDir = nullptr;
     std::vector<QProcessUniquePointer> m_qmlPuppetProcesses;
     int m_qmlPuppetCount = 0;
+    int m_qmlImportFinishedCount = 0;
+    int m_importIdCounter = 1000000; // Use ids in range unlikely to clash with any normal process exit codes
+    QHash<int, ParseData> m_parseData;
+    QString m_progressTitle;
 };
 } // QmlDesigner
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryview.cpp b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryview.cpp
index 823baa5d149..c1a3c704d8c 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryview.cpp
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryview.cpp
@@ -25,6 +25,7 @@
 
 #include "itemlibraryview.h"
 #include "itemlibrarywidget.h"
+#include "itemlibraryassetimportdialog.h"
 #include "metainfo.h"
 #include <asynchronousimagecache.h>
 #include <bindingproperty.h>
@@ -216,4 +217,46 @@ void ItemLibraryView::updateImports()
     m_widget->delayedUpdateModel();
 }
 
+void ItemLibraryView::updateImport3DSupport(const QVariantMap &supportMap)
+{
+    QVariantMap extMap = qvariant_cast<QVariantMap>(supportMap.value("extensions"));
+    if (m_importableExtensions3DMap != extMap) {
+        DesignerActionManager *actionManager =
+                 &QmlDesignerPlugin::instance()->viewManager().designerActionManager();
+
+        // All things importable by QSSGAssetImportManager are considered to be in the same category
+        // so we don't get multiple separate import dialogs when different file types are imported.
+        const QString category = tr("3D Assets");
+
+        if (!m_importableExtensions3DMap.isEmpty())
+            actionManager->unregisterAddResourceHandlers(category);
+
+        m_importableExtensions3DMap = extMap;
+
+        auto handle3DModel = [this](const QStringList &fileNames, const QString &defaultDir) -> bool {
+            auto importDlg = new ItemLibraryAssetImportDialog(fileNames, defaultDir,
+                                                              m_importableExtensions3DMap,
+                                                              m_importOptions3DMap,
+                                                              Core::ICore::mainWindow());
+            importDlg->show();
+            return true;
+        };
+
+        auto add3DHandler = [&](const QString &category, const QString &ext) {
+            const QString filter = QStringLiteral("*.%1").arg(ext);
+            actionManager->registerAddResourceHandler(
+                        AddResourceHandler(category, filter, handle3DModel, 10));
+        };
+
+        const auto groups = extMap.keys();
+        for (const auto &group : groups) {
+            const QStringList exts = extMap[group].toStringList();
+            for (const auto &ext : exts)
+                add3DHandler(category, ext);
+        }
+    }
+
+    m_importOptions3DMap = qvariant_cast<QVariantMap>(supportMap.value("options"));
+}
+
 } // namespace QmlDesigner
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryview.h b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryview.h
index 21d23098cf3..25d411f7b16 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibraryview.h
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibraryview.h
@@ -53,6 +53,7 @@ public:
     void modelAboutToBeDetached(Model *model) override;
     void importsChanged(const QList<Import> &addedImports, const QList<Import> &removedImports) override;
     void documentMessagesChanged(const QList<DocumentMessage> &errors, const QList<DocumentMessage> &warnings) override;
+    void updateImport3DSupport(const QVariantMap &supportMap) override;
 
     void setResourcePath(const QString &resourcePath);
 
@@ -66,6 +67,8 @@ private:
     QPointer<ItemLibraryWidget> m_widget;
     ImportManagerView *m_importManagerView;
     bool m_hasErrors = false;
+    QVariantMap m_importableExtensions3DMap;
+    QVariantMap m_importOptions3DMap;
 };
 
 }
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp b/src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp
index bbd43986d9e..ccc9c595c17 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp
@@ -26,7 +26,6 @@
 #include "itemlibrarywidget.h"
 
 #include "customfilesystemmodel.h"
-#include "itemlibraryassetimportdialog.h"
 #include "itemlibraryiconimageprovider.h"
 
 #include <theme.h>
@@ -53,10 +52,6 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/messagebox.h>
 
-#ifdef IMPORT_QUICK3D_ASSETS
-#include <QtQuick3DAssetImport/private/qssgassetimportmanager_p.h>
-#endif
-
 #include <QApplication>
 #include <QDrag>
 #include <QFileDialog>
@@ -205,49 +200,6 @@ ItemLibraryWidget::ItemLibraryWidget(AsynchronousImageCache &imageCache,
         addResources({});
     });
 
-#ifdef IMPORT_QUICK3D_ASSETS
-    DesignerActionManager *actionManager =
-             &QmlDesignerPlugin::instance()->viewManager().designerActionManager();
-
-    auto handle3DModel = [](const QStringList &fileNames, const QString &defaultDir) -> bool {
-        auto importDlg = new ItemLibraryAssetImportDialog(fileNames, defaultDir, Core::ICore::mainWindow());
-        importDlg->show();
-        return true;
-    };
-
-    auto add3DHandler = [&](const QString &category, const QString &ext) {
-        const QString filter = QStringLiteral("*.%1").arg(ext);
-        actionManager->registerAddResourceHandler(
-                    AddResourceHandler(category, filter, handle3DModel, 10));
-    };
-
-    QSSGAssetImportManager importManager;
-    QHash<QString, QStringList> supportedExtensions = importManager.getSupportedExtensions();
-
-    // All things importable by QSSGAssetImportManager are considered to be in the same category
-    // so we don't get multiple separate import dialogs when different file types are imported.
-    const QString category = tr("3D Assets");
-
-    // Skip if 3D asset handlers have already been added
-    const QList<AddResourceHandler> handlers = actionManager->addResourceHandler();
-    bool categoryAlreadyAdded = false;
-    for (const auto &handler : handlers) {
-        if (handler.category == category) {
-            categoryAlreadyAdded = true;
-            break;
-        }
-    }
-
-    if (!categoryAlreadyAdded) {
-        const auto groups = supportedExtensions.keys();
-        for (const auto &group : groups) {
-            const auto extensions = supportedExtensions[group];
-            for (const auto &ext : extensions)
-                add3DHandler(category, ext);
-        }
-    }
-#endif
-
     const auto dropSupport = new Utils::DropSupport(
                 m_resourcesView.data(), [this](QDropEvent *event, Utils::DropSupport *) {
         // Accept supported file types
diff --git a/src/plugins/qmldesigner/designercore/include/abstractview.h b/src/plugins/qmldesigner/designercore/include/abstractview.h
index 88c15ccf76c..8645da77935 100644
--- a/src/plugins/qmldesigner/designercore/include/abstractview.h
+++ b/src/plugins/qmldesigner/designercore/include/abstractview.h
@@ -189,6 +189,7 @@ public:
     void emitRenderImage3DChanged(const QImage &image);
     void emitUpdateActiveScene3D(const QVariantMap &sceneState);
     void emitModelNodelPreviewPixmapChanged(const ModelNode &node, const QPixmap &pixmap);
+    void emitImport3DSupportChanged(const QVariantMap &supportMap);
 
     void sendTokenToInstances(const QString &token, int number, const QVector<ModelNode> &nodeVector);
 
@@ -248,6 +249,7 @@ public:
 
     virtual void renderImage3DChanged(const QImage &image);
     virtual void updateActiveScene3D(const QVariantMap &sceneState);
+    virtual void updateImport3DSupport(const QVariantMap &supportMap);
     virtual void modelNodePreviewPixmapChanged(const ModelNode &node, const QPixmap &pixmap);
 
     void changeRootNodeType(const TypeName &type, int majorVersion, int minorVersion);
diff --git a/src/plugins/qmldesigner/designercore/instances/nodeinstanceview.cpp b/src/plugins/qmldesigner/designercore/instances/nodeinstanceview.cpp
index 508970c4d83..d4741928a53 100644
--- a/src/plugins/qmldesigner/designercore/instances/nodeinstanceview.cpp
+++ b/src/plugins/qmldesigner/designercore/instances/nodeinstanceview.cpp
@@ -1578,6 +1578,9 @@ void NodeInstanceView::handlePuppetToCreatorCommand(const PuppetToCreatorCommand
                 updatePreviewImageForNode(node, image);
             }
         }
+    } else if (command.type() == PuppetToCreatorCommand::Import3DSupport) {
+        const QVariantMap supportMap = qvariant_cast<QVariantMap>(command.data());
+        emitImport3DSupportChanged(supportMap);
     }
 }
 
diff --git a/src/plugins/qmldesigner/designercore/model/abstractview.cpp b/src/plugins/qmldesigner/designercore/model/abstractview.cpp
index 963b001f238..b6818d2ee67 100644
--- a/src/plugins/qmldesigner/designercore/model/abstractview.cpp
+++ b/src/plugins/qmldesigner/designercore/model/abstractview.cpp
@@ -386,6 +386,10 @@ void AbstractView::updateActiveScene3D(const QVariantMap & /*sceneState*/)
 {
 }
 
+void AbstractView::updateImport3DSupport(const QVariantMap & /*supportMap*/)
+{
+}
+
 void AbstractView::modelNodePreviewPixmapChanged(const ModelNode & /*node*/, const QPixmap & /*pixmap*/)
 {
 }
@@ -804,6 +808,12 @@ void AbstractView::emitModelNodelPreviewPixmapChanged(const ModelNode &node, con
         model()->d->notifyModelNodePreviewPixmapChanged(node, pixmap);
 }
 
+void AbstractView::emitImport3DSupportChanged(const QVariantMap &supportMap)
+{
+    if (model())
+        model()->d->notifyImport3DSupportChanged(supportMap);
+}
+
 void AbstractView::emitRewriterEndTransaction()
 {
     if (model())
diff --git a/src/plugins/qmldesigner/designercore/model/model.cpp b/src/plugins/qmldesigner/designercore/model/model.cpp
index 008f5dd6a79..53a1e563d42 100644
--- a/src/plugins/qmldesigner/designercore/model/model.cpp
+++ b/src/plugins/qmldesigner/designercore/model/model.cpp
@@ -575,6 +575,11 @@ void ModelPrivate::notifyModelNodePreviewPixmapChanged(const ModelNode &node, co
         [&](AbstractView *view) { view->modelNodePreviewPixmapChanged(node, pixmap); });
 }
 
+void ModelPrivate::notifyImport3DSupportChanged(const QVariantMap &supportMap)
+{
+    notifyInstanceChanges([&](AbstractView *view) { view->updateImport3DSupport(supportMap); });
+}
+
 void ModelPrivate::notifyRewriterBeginTransaction()
 {
     notifyNodeInstanceViewLast([&](AbstractView *view) { view->rewriterBeginTransaction(); });
diff --git a/src/plugins/qmldesigner/designercore/model/model_p.h b/src/plugins/qmldesigner/designercore/model/model_p.h
index 072b6a887fc..7a15b73468b 100644
--- a/src/plugins/qmldesigner/designercore/model/model_p.h
+++ b/src/plugins/qmldesigner/designercore/model/model_p.h
@@ -176,6 +176,7 @@ public:
     void notifyRenderImage3DChanged(const QImage &image);
     void notifyUpdateActiveScene3D(const QVariantMap &sceneState);
     void notifyModelNodePreviewPixmapChanged(const ModelNode &node, const QPixmap &pixmap);
+    void notifyImport3DSupportChanged(const QVariantMap &supportMap);
 
     void setDocumentMessages(const QList<DocumentMessage> &errors, const QList<DocumentMessage> &warnings);
 
diff --git a/src/tools/qml2puppet/CMakeLists.txt b/src/tools/qml2puppet/CMakeLists.txt
index 0881e549437..56cbec3f012 100644
--- a/src/tools/qml2puppet/CMakeLists.txt
+++ b/src/tools/qml2puppet/CMakeLists.txt
@@ -137,6 +137,14 @@ extend_qtc_executable(qml2puppet
     icongizmoimageprovider.cpp icongizmoimageprovider.h
 )
 
+find_package(Qt5 5.15.0 COMPONENTS Quick3DAssetImport QUIET)
+extend_qtc_executable(qml2puppet
+  CONDITION TARGET Qt5::Quick3DAssetImport
+  FEATURE_INFO "Qt Quick 3D asset import"
+  DEPENDS Qt5::Quick3DAssetImportPrivate
+  DEFINES IMPORT_QUICK3D_ASSETS
+)
+
 extend_qtc_executable(qml2puppet
   CONDITION Qt5_VERSION VERSION_GREATER_EQUAL 6.0.0
 
@@ -151,6 +159,12 @@ extend_qtc_executable(qml2puppet
     iconrenderer.cpp iconrenderer.h
 )
 
+extend_qtc_executable(qml2puppet
+  SOURCES_PREFIX "${SRCDIR}/qml2puppet/import3d"
+  SOURCES
+    import3d.cpp import3d.h
+)
+
 extend_qtc_executable(qml2puppet
   SOURCES_PREFIX "${SRCDIR}/qml2puppet/instances"
   SOURCES
diff --git a/src/tools/qml2puppet/qml2puppet.qbs b/src/tools/qml2puppet/qml2puppet.qbs
index f55104559c9..08d947d14d6 100644
--- a/src/tools/qml2puppet/qml2puppet.qbs
+++ b/src/tools/qml2puppet/qml2puppet.qbs
@@ -243,6 +243,8 @@ QtcTool {
             "editor3d/icongizmoimageprovider.h",
             "iconrenderer/iconrenderer.cpp",
             "iconrenderer/iconrenderer.h",
+            "import3d/import3d.cpp",
+            "import3d/import3d.h",
             "qml2puppetmain.cpp",
         ]