How to get behavior of menu that points to a drive

I created a menu that points to the root of my e: drive. Is there a way to

a) make the menu only show selected folders from the e: drive? (I can't think of a way to make filters work because there's not really a pattern to distinguish between the ones I want and don't want to show)

b) make the folders listed in the main menu not expand into submenus when the mouse is on them? And have them open in Explorer when they're clicked on.

Thanks.