
CandyFace
Hi demonlight
There is no straight forward way to do such thing, I would do it like this:
Start selecting one of the parts of your sprite, ie. an arm, either using the selection tool or the magic wand tool, or a combination of both, hold shift to keep selecting, when you're satisfied with your selection press delete to remove the part from your main layer, create a new layer, and copy your part onto it.