Can the submenus open on mouseover instead of mouse click?
This feature was implemented and abandoned because it can cause the menu behaviour to be erratic. Consider the following example: The user moves the mouse over menu 1. The submenu opens. Next, he moves the mouse down to menu 2 which contains another submenu. The first submenu closes and the second submenu opens. As a result, the mouse is now over another menu item instead of Menu 2. If this menu item contains a submenu, it will open and the second submenu will close immediately without leaving the user time to navigate.