Improved: Tabs can be closed by middle click in the Configuration Editor. Ctrl+A can be used to select all rows.

Fixed: When a line was edited manually in the Configuration Editor, the file was not saved automatically when "Instant mode" was enabled.

Editor/MainWindow.ui

@@ -28,7 +28,7 @@
      <number>0</number>
     </property>
     <item row="0" column="0">
-     <widget class="QTabWidget" name="tabWidget">
+     <widget class="MiddleClickTabWidget" name="tabWidget">
       <property name="documentMode">
        <bool>true</bool>
       </property>
@@ -71,6 +71,8 @@
     <addaction name="actionCopy"/>
     <addaction name="actionPaste"/>
     <addaction name="actionDelete"/>
+    <addaction name="separator"/>
+    <addaction name="actionSelectAll"/>
    </widget>
    <widget class="QMenu" name="menuView">
     <property name="title">
@@ -568,7 +570,7 @@
     <string>New</string>
    </property>
    <property name="shortcut">
-    <string>Ctrl+N</string>
+    <string notr="true">Ctrl+N</string>
    </property>
   </action>
   <action name="actionOpen">
@@ -583,7 +585,7 @@
     <string>Open</string>
    </property>
    <property name="shortcut">
-    <string>Ctrl+O</string>
+    <string notr="true">Ctrl+O</string>
    </property>
   </action>
   <action name="actionSave">
@@ -598,7 +600,7 @@
     <string>Save</string>
    </property>
    <property name="shortcut">
-    <string>Ctrl+S</string>
+    <string notr="true">Ctrl+S</string>
    </property>
   </action>
   <action name="actionSaveAs">
@@ -612,13 +614,16 @@
    <property name="toolTip">
     <string>Save as...</string>
    </property>
+   <property name="shortcut">
+    <string notr="true"/>
+   </property>
   </action>
   <action name="actionExit">
    <property name="text">
     <string>Exit</string>
    </property>
    <property name="shortcut">
-    <string>Alt+F4</string>
+    <string notr="true">Alt+F4</string>
    </property>
   </action>
   <action name="actionCut">
@@ -630,7 +635,7 @@
     <string>Cut</string>
    </property>
    <property name="shortcut">
-    <string>Ctrl+X</string>
+    <string notr="true">Ctrl+X</string>
    </property>
   </action>
   <action name="actionCopy">
@@ -642,7 +647,7 @@
     <string>Copy</string>
    </property>
    <property name="shortcut">
-    <string>Ctrl+C</string>
+    <string notr="true">Ctrl+C</string>
    </property>
   </action>
   <action name="actionPaste">
@@ -654,7 +659,7 @@
     <string>Paste</string>
    </property>
    <property name="shortcut">
-    <string>Ctrl+V</string>
+    <string notr="true">Ctrl+V</string>
    </property>
   </action>
   <action name="actionDelete">
@@ -665,6 +670,9 @@
    <property name="text">
     <string>Delete</string>
    </property>
+   <property name="shortcut">
+    <string notr="true"/>
+   </property>
   </action>
   <action name="actionToolbar">
    <property name="checkable">
@@ -692,6 +700,18 @@
     <string>Reset all file-specific preferences</string>
    </property>
   </action>
+  <action name="actionSelectAll">
+   <property name="icon">
+    <iconset resource="Editor.qrc">
+     <normaloff>:/icons/edit-select-all.ico</normaloff>:/icons/edit-select-all.ico</iconset>
+   </property>
+   <property name="text">
+    <string>Select all</string>
+   </property>
+   <property name="shortcut">
+    <string notr="true">Ctrl+A</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
@@ -705,6 +725,12 @@
    <extends>QSpinBox</extends>
    <header>Editor/widgets/ExponentialSpinBox.h</header>
   </customwidget>
+  <customwidget>
+   <class>MiddleClickTabWidget</class>
+   <extends>QTabWidget</extends>
+   <header>Editor/widgets/MiddleClickTabWidget.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="Editor.qrc"/>