Set the gtk.AccelGroup which holds global accelerators for the
menu. This accelerator group needs to also be added to all windows
that this menu is being used in with Window.addAccelGroup,
in order for those windows to support all the accelerators
contained in this group.
Set the gtk.AccelGroup which holds global accelerators for the menu. This accelerator group needs to also be added to all windows that this menu is being used in with Window.addAccelGroup, in order for those windows to support all the accelerators contained in this group.