It's still not clear whats going on. The links seems to go to the same stuff thats in the documentation which to me seems not clearly written. It reads like someone from a foreign country trying to write english. I did get a little further on shading, the above diagram helped, but I could only shade one of the domains. Show me with pictures how you would do more than one domain. I did get a little bit further on putting in the window and door objects. I imported the a window into the same document as the building but I don't get how I put it in the window hole. Show me more please with lots of pictures. I'm a right brain kind of guy. Thanks