Shift + Double Click should maximize/restore menu size
The Morrowind PC Manual says that in addition to "hiding" (closing) a menu when you double click its title (a feature already implemented) when you hold shift + double click the menu's title it should alternate between maximizing the menu on the screen and returning it to the size it was originally.
(RM-3999 from redmine: created on 2017-08-06 by Paul McElroy, )
Edited by redmine