I'm with Redneck on this one, too. I spend as much time in the attribute matrices as I do physically manipulating objects, these days... Good questions though, Paul, if you've played a lot with UnrealEd or similar programs you will find Bryce's lack of any real collision detection obnoxious, but not impossible. The spray render will help you make sure things are lined up, because oftentimes the only way to be sure is to check the render itself. One thing that MIGHT help is the "brushes" way of thinking. There are no brushes in Bryce, I know it was just a phrase but it's also an entirely different way of thinking! UnrealEd does have some advantages, in this manner, and I would LOVE to find or create an Unreal level converter for Bryce, it would make doing interior modeling soooooo much easier!