+ /* Each menu has a single more_menu. When the menu spills past what
+ can fit on the screen, a new menu frame entry is created from this
+ more_menu, and a new menu frame for the submenu is created for this
+ menu, also pointing to the more_menu.
+
+ This can be done multiple times using the same more_menu.
+
+ more_menu->more_menu will always be NULL, since there is only 1 for
+ each menu. */