Ron, I use the term turn on and off because in AutoCAD we turn layers on and off, the same in Vue so I am use to that term, and if you want to place something exactly right on the floor you may not want the walls in the way of the camera. That is why you make them invisable for a breif time, place your camera, that way you don't have to go through the walls, place your lights etc. Then make things visable again with everything in it's place. I don't know about you, but I am always making things visable and non visable all the time when I work in Poser, and I place my objects that way, so they are exact. In Vue, and Byrce I turn things on and off all the time to, just easier for me. Maybe I am the only one that does this. Hope that has cleared up any confusion. Sharen