Index: sources/gui/qml/components/HeaderBar.qml
===================================================================
diff -u -r810193ec7b4826c46c6f10813194d0c8bd7982f1 -rfea3fc898bc7f77cc8d6daba4ebad5ea651f6ffc
--- sources/gui/qml/components/HeaderBar.qml	(.../HeaderBar.qml)	(revision 810193ec7b4826c46c6f10813194d0c8bd7982f1)
+++ sources/gui/qml/components/HeaderBar.qml	(.../HeaderBar.qml)	(revision fea3fc898bc7f77cc8d6daba4ebad5ea651f6ffc)
@@ -17,6 +17,23 @@
         GradientStop { position: 0.8; color: Qt.darker (Colors.backgroundMain, 1.2) }
     }
 
+    MouseArea { id: _mouseArea
+        anchors.fill    : parent
+        // TODO: disable this later. this is only for diagnostic purpose.
+        onDoubleClicked : {
+            if ( _GuiView.dryDemoMode ) {
+                let dryDemoTempID = 99
+                let id = vConfirm.id
+                vConfirm.id = dryDemoTempID
+                vConfirm.doConfirm( true  )
+                vConfirm.id = id
+            }
+            else {
+                _diagnosticsDialog.open()
+            }
+        }
+    }
+
     Item { id: _dateTimeItem
         width   : Variables.headerBarDateTimeWidth
         anchors {