It'd be awesome if, especially when working on a projection study, you could throw in some copernic objects. I think it would be useful when planning camera number and locations.
-Show number of cameras that can 'see' a copernic (you could then move the copernic around to identify blind spots in the scene'
-Show whether a camera can see the retro-reflection (Turn a SLAC pattern on per projector and look a the camera view?)