it is do-able...at least in other programs..what you need is a better set of options to set for the light,so you can define what objects it affects...a setting i think poser lacks..at least i haven't seen it..poser's lighting is actually fairly primitive in comparison to most prog's.in most other 3d programs you can just tell a light to affect this or that or exclude this or that object and there you go...it does seem simple enough but i don't know how or if you could implement it in poser...it seems like it should be simple,and i could be wrong,but i bet it's not,something tells me you're going to run into poser's hard coded lighting model