Sorry, but I'm spanish and my english it's to bad.
When i do a personaje, want that the eye close by a mask. That man or woman have bones for the arms, had, etc... but I can't attach the mask that is a layer to the bone that I want.
You can attach a layer (any layer) to a bone using the Attach Layer tool - it looks like a little page of paper with a bone on top of it. Have you tried using that tool?