I've applied one of the 30 frame Poser 5 in the library walks to a character, and it's working. However, I don't like the closeness of the arms, so I tried to move them out a bit, but it only affected that particular frame. The ones before it were unaffected. I thought if you moved a part in a frame, Poser would tween the frames in between, figuring out where the arm would be.