I believe that the classic menus are convenient for many users, but they are a bit outdated and not needed by advanced users. The ability to disable and re-enable them in the settings would be very helpful. I propose to review the following mock-up:
@wekiso, what you have suggested is a nice idea. However, the fact that they get in the way of advanced users is a Windows only issue. In Mac OS and certain Linux desktop managers, the menu bar appears at the top of the screen, detached from the window. And getting ability to get rid of the menu bar would be pretty lame in those cases. So if consistency of the app across is a concern, then this might cause an issue. At any rate, it is up to @laurent to decide.