Have you tried the /activeclip/ or /activelayer/ OSC commands?
Maybe i'm not sure what your trying to do, you said you want to control the :
When you select a new layer the clip playing in that layer become the active clip. when selecting a new clip it becomes the active clip no matter what layer it is on. Switching decks in another thing, I guess that would not work. Can't controls clips you can't see.active clip transport controls universally for any clip in any layer in any deck
But I think you should get the result you want if you use this OSC command:
/activeclip/video/position/
it should work with direction controls too, not sure:
/activeclip/video/position/direction
more info here:
http://www.resolume.com/forum/viewtopic ... yer#p21896