I collected some feedback of users and they told me some wishes.
1. When you edit a session and view the variable list it sometimes would be useful to see what value a variable actually would have.
2. It would be comfortabel to copy/duplicate a session with Drag&Drop by press and hold CTRL+LMB like in Windows and also with CTRL+C/CTRL+V
3. Sometimes it could be useful to be able to have more than one "Properties"-window open. Especially to compare 2 sessions or during creating a new session take a look on an existing session.
I have entered 3 feature requests. Those are good ideas