Keep a menu open until the menu button is pressed again.

Actually, activating a torn off menu with a shortcut that runs a hotkey is pretty messy in comparison. I want it open like a non-torn off menu - i.e. using the menu docking point and alignment and the "avoid toolbar overlap options". And I need it to hug the edge of the triggering button's toolbar. A torn of menu requires manual positioning to hug the toolbar and needs repositioning when you do something like change the triggering toolbar's height. In effect I want the menu to appear as a toolbar.