Option for menu bar placement

Is it possible to append/insert the menubar to a DOM that is not the top of the editor? I couldn’t find the option to do so, but a option like the place for the editor module would be nice.

Nope, but you can duplicate the functionality of the menu bar pretty easily by directly using menu/menu.js. Most of the 150 lines in menubar.js relate to positioning and floating the menu, if you don’t need that, you don’t need this module.