Palate schmalet. Since I don't know your interface, why not try things the old fashioned way?
CHANGE(Enter) Select objects: (Pick the hatch)1 found
Select objects:(Enter) Properties/: p(Enter)
Change what property (Color/Elev/LAyer/LType/ltScale/Thickness) ? c (Enter)
New color : white(you could also type '7') (Enter)
Change what property (Color/Elev/LAyer/LType/ltScale/Thickness) ? (Enter)
It's a very good idea to get to know the appilcation apart form any particular interface setup. (This means the command line.) If your business is anything like mine, you will one day be staring at an installation that is completely different, and you will be a liability to the organization until you get back up to speed. ( I can walk up to a machine without any toolbars or menus and still work despite being a bit frustrated.)
You might also discover that you are much faster when your pointer is not always leaving the work area on some cross-screen trek in search of a button that only issues a command your other hand could deliver in a flash through the use of aliases, while your pointer stays in the vicinity of the next click. That's always seemed to me like a framer leaving his hammer in his truck and going back for it every time he needs to whack a nail: inefficient at least.