Docking of the Tool and Project panels allowed on the left hand side too.

GUI_main/mainwindow.ui

@@ -122,7 +122,7 @@
     <set>QDockWidget::DockWidgetFloatable|QDockWidget::DockWidgetMovable</set>
    </property>
    <property name="allowedAreas">
-    <set>Qt::RightDockWidgetArea</set>
+    <set>Qt::LeftDockWidgetArea|Qt::RightDockWidgetArea</set>
    </property>
    <property name="windowTitle">
     <string>Project manager</string>
@@ -167,7 +167,7 @@
           <x>0</x>
           <y>0</y>
           <width>384</width>
-          <height>301</height>
+          <height>300</height>
          </rect>
         </property>
         <layout class="QVBoxLayout" name="verticalLayout_6">
@@ -265,7 +265,7 @@
     <set>QDockWidget::DockWidgetFloatable|QDockWidget::DockWidgetMovable</set>
    </property>
    <property name="allowedAreas">
-    <set>Qt::RightDockWidgetArea</set>
+    <set>Qt::LeftDockWidgetArea|Qt::RightDockWidgetArea</set>
    </property>
    <property name="windowTitle">
     <string>Tools</string>
@@ -307,7 +307,7 @@
           <x>0</x>
           <y>0</y>
           <width>384</width>
-          <height>359</height>
+          <height>360</height>
          </rect>
         </property>
         <layout class="QVBoxLayout" name="verticalLayout_4">