Hasta La Motion!

I Have a matte that was created using the "Keyer" node. I wanted to "paint in" or "fill in" the matte using the paint node.
I really don’t want to paint frame by frame.

Is there a way to apply tracking data to the paint stokes?
There is no translation x, y on the paint layers, so I can’t figure out how to link the tracking data.

Also, I tried using a Constant node, painting on it, add a transform node (so I could apply track data) and then merge it after the keyer node. But it didn’t work, I got weird results.

Thanks,
Lou