aenhancers

wondering if this is possible... we get lots of outsourced roto and generally dont get mocha files (for the tracking data) included. I would like to use a masks position data for other masks, i.e. actor 1 has mask for head but none for his torso, so I'd like to draw a mask at first frame for torso and "somehow" use the "head mask" position data for torso position. I've scoured this forum but i'm really new at this so forgive me if its already been done and i missed it or it's just ridiculous and impossible.
thanks guys, trying to learn this has given me the utmost repect for you all.