here is what someone from elation hd to say bout ur question. "This is a frequently asked question, and the best answer I can give is that it is possible, but very difficult.
The Compu Live spotlight feature will work in lining up a group of fixtures together and focusing or moving them on a single position.
The difficult part is the variables involved in using a remote spotlight, such as smooth pan and tilt movement, hard stops on an individual point, and the persons ability to accurately execute a real time followspot effect on the controller.
As far as automatically following a person on the floor, there used to be a few really expensive DMX tracking systems out a while back (none of which we have made), but Compu Live cannot track someone in 3d, there are again to many variables involved.
Hope this helps.....
Michael Giardina
Elation Lighting"
hope that helps at all. if u need anything else let me know. peace! jingles!