so renee, how would you want this to work? Right now, if you pull up the floating preview for a material, you would only see the change if you edit the material, right? So you need some kind of material editor open as well. the vray materials editor already has a preview, so would it be enough to just have the options for different shapes/sizes inside the vray mat ed? or would you want the rhino properties window to be able to show the vray materials editor, the way it does for rhino materials? it seems to me that this last option would be the most useful.