I don't know if this will help in your case, but the easiest way for me to move and/or rotate a clip is to link the character to a prop and then to reposition to prop, in your case to the origin.
This is probably an old-fashioned way of doing this...:unsure:
After you repositioned the character this way, you should be able to create a new clip positioned at the origin by doing a Collect Clip.