diff --git a/HISTORY.rst b/HISTORY.rst
index f2b80732..64bd456e 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -25,7 +25,6 @@ PlatformIO 3.0
   (`issue #814 <https://github.com/platformio/platformio/issues/814>`_)
 * Fixed issue with ``PATH`` auto-configuring for upload tools
 * Fixed ``99-platformio-udev.rules`` checker for Linux OS
-* Stopped supporting PySerial 2.7
 
 -------
 
diff --git a/docs/ide/cloud9.rst b/docs/ide/cloud9.rst
index c2117886..3528a922 100644
--- a/docs/ide/cloud9.rst
+++ b/docs/ide/cloud9.rst
@@ -141,7 +141,6 @@ OTA Device Manager
 Over-The-Air (OTA) Device Manager works in pair with :ref:`pio_remote`.
 You can list remote devices that are connected to host machine where
 :ref:`pio_remote_agent` is started or are visible for it.
-To list active agents please use this command :ref:`cmd_remote_agent_list`.
 
 Let's create New Run Configuration (shortcut) that will be used for OTA Manager.
 Please click on ``Menu: Run > Run Configurations > Manage...``, then
@@ -153,12 +152,13 @@ Please click on ``Menu: Run > Run Configurations > Manage...``, then
 
 .. image:: ../_static/ide/cloud9/ide-cloud9-runner-ota-devices.png
 
+.. _ide_cloud9_ota_updates:
+
 OTA Firmware Uploading
 ----------------------
 
 Over-The-Air (OTA) Firmware Uploading works in pair with :ref:`pio_remote`.
 You can deploy firmware to any devices which are visible for :ref:`pio_remote_agent`.
-To list active agents please use this command :ref:`cmd_remote_agent_list`.
 
 Let's create New Run Configuration (shortcut) that will be used for OTA Uploads.
 Please click on ``Menu: Run > Run Configurations > Manage...``, then
@@ -187,3 +187,33 @@ Please click on ``Menu: Run > Run Configurations > Manage...``, then
 * **Runner**: set to "Shell command"
 
 .. image:: ../_static/ide/cloud9/ide-cloud9-runner-ota-serial-monitor.png
+
+Multi-Project workspace
+-----------------------
+
+You can have multiple PlatformIO-based project in the same workspace. We
+recommend a next folders structure:
+
+.. code::
+
+    ├── project-A
+    │   ├── lib
+    │   │   └── readme.txt
+    │   ├── platformio.ini
+    │   └── src
+    │       └── main.ino
+    └── project-B
+        ├── lib
+        │   └── readme.txt
+        ├── platformio.ini
+        └── src
+            ├── main.cpp
+            └── main.h
+
+In this case, you need to create 2 "New Run Configuration" for
+:ref:`ide_cloud9_ota_updates` with using the next **commands**:
+
+* ``pio remote run --project-dir project-A -t upload`` for Project-A
+* ``pio remote run -d project-B -t upload`` for Project-B
+
+See documentation for :option:`platformio remote run --project-dir` option.
\ No newline at end of file
diff --git a/docs/plus/pio-remote.rst b/docs/plus/pio-remote.rst
index e30c5742..35a02757 100644
--- a/docs/plus/pio-remote.rst
+++ b/docs/plus/pio-remote.rst
@@ -85,6 +85,9 @@ connected physically to host machine where |PIORemote| Agent is started,
 where wireless devices should be visible for |PIORemote| Agent to provide
 network operations Over-The-Air.
 
+To list active |PIORemote| Agents, please use :ref:`cmd_remote_agent_list`
+command.
+
 User Guide (CLI)
 ----------------
 
diff --git a/docs/userguide/account/index.rst b/docs/userguide/account/index.rst
index e98803ec..04409e4a 100644
--- a/docs/userguide/account/index.rst
+++ b/docs/userguide/account/index.rst
@@ -18,6 +18,7 @@ Having **PIO Account** allows you to use extra professional features from
 `PlatformIO Plus <https://pioplus.com/>`__:
 
 * :ref:`pio_remote`
+* :ref:`ide_cloud`
 * :ref:`unit_testing`
 
 A registration is **FREE**.