What are you trying to customize?

I'm still going at it in both directions similar to how you do and trying to just customize what SB does.

I haven't decided whats best. For example, you do your own layout and programming completely. Have you figured out how to show feedback on a Keypad/PTL4/Mobile Pro when a light is turned on by another interface? Or a zone is turned on?

I figured out how to get feedback for the ipod, but haven't really figured out how to make other interfaces repsond when something is done in the same zone but from another control.......is this making sense?