Let me see if I can explain this... Say you have this complex scene set-up in poser with multiple figures and props. When you view the scene, one or more figures or props may be placed infront of each other making it hard to get to the ones in the back. When you use the hither dial you can "Look Through" the figures and props to see the figures and props behind them. I assume this makes it easier to tweak the poses and placements. As far as I know this doesn't effect the final render at all. -JH.