I used to be a compu guy..it's been a long time now, but i believe the function you are talking about is the "lead/follow" function which was based on 3d positioning, where you needed to set UL,UR,DL,DR to set the working area of your stage.. much like on the H2.. I could be wrong though..
I used to be a compu guy..it's been a long time now, but i believe the function you are talking about is the "lead/follow" function which was based on 3d positioning, where you needed to set UL,UR,DL,DR to set the working area of your stage.. much like on the H2.. I could be wrong though..