This is more of suggestion than bug report, so I’ll put this here. When previewing game, Scene>>Quit game action doesn’t work. I was freaked a bit because of it because I thought it is another bug. So I compiled game to see if in compiled it will be this too. But game exited normally where it should.
So there is my suggestion: In Preview Mode when Quit Game command is used, game should be back to edit mode (preview mode should be exited).
Also please move change current scene/quit game stuff to Game Window since it more belong there and that was first place I looked for stuff like it (and probably other newbies will look in Game Window too).