What exactly are you wanting to do? Move lots of objects using the same buttons or something? Sorry but I'm probably just missing something simple in your question.
If you want to move lots of objects using the same key presses, that's easy enough... just make the same control type for each object... IE platform, 8 direction, etc.
If there is something else you are trying to do, then you might have to fill in the blanks... I'm pretty bad at trying to "get it" at times.