In Ubuntu 14.04 it will be possible to return the main menu of the application to the window.
One of the innovations of the Unity shell, which caused a lot of controversy, was the emergence of a global menu in the style of Mac OS X. Developers took this step for reasons of saving screen space, besides, the menu, which is always at the top of the screen, is much easier to get by the mouse without looking .
Nevertheless, according to Canonical designers, for many users the disadvantages of the global menu outweigh the benefits. This is especially pronounced on large monitors - the menu may be too far from the application window. A new old feature called Locally Integrated Menus (LIM) has already appeared in Ubuntu 14.04 Prereleases. The local menu can be enabled in the appearance options. It will appear in the title of the window, so that saving the vertical space of the screen will not go anywhere.
According to Unity team member Marco Trevizana, the developers wanted to implement this behavior of the local menu two years ago, but it turned out that this rather simple interface change hid a huge amount of work - menu integration in the window header was blocked by using the old widget system and window decorations, particular the Compiz gtk-window-decorator plugin. Only by rewriting these subsystems again could one move on. Naturally, menu integration is not the only plus of the new subsystem. Windows will scale much faster and look better. ')
Trevizan writes that if the local menu is perceived by users positively, in the release this option will be enabled by default.