ok, so to split scenes of this house file, first i deleted all the trees and saved, then i reversed it (but some trees were groups with the alternate selection, so had to ungroup them..... now I'm assuming I render both, then merge? and when rendering, AA too? or merge, then render and AA? experimenting now....LOL (experimenting, all drugged up....not a good thing...(or is it? hahaha)) Jen