Feature Request: Auto-menu opening on toolbar buttons

[BGM]

We are able to create toolbar buttons that have dropdown menus. Now, I have a toolbar with a half-dozen menu-buttons. When I click on the button, the menu opens.

Now, say I move the mouse to the next menu-button. The former menu stays open. However, I would like it so that when I hover over the next menu-button, that the next menu opens automatically.

I am not proposing that the menus open simply by hovering - instead, you have to initiate the auto-open-on-hover by first clicking on any menu-button. After that, you just hover over any menu-button and the menus open by hovering. You wouldn't want auto-hover all the time (without initiation) because the menus would pop up when you moused over to the menu bar.

The web-developer toolbar (and my Sharepoint Administrator toolbar, too) does this in Firefox.

So, feature request: Auto-Opening-Menus on Mouse-Hover, after click-initiation.