A couple of other notes -- First, you can name cameras. Once you select a camera in the instance list on the right, you can give it a private "personal" name by typing something at the top right where it says, for example "Camera 1". Warning: it seems to take a while for the name to sink in. I've had to flip back and forth between cameras, and windows, before the menu of cameras on the left actually gave me the right name. (Known bug, Eovia is aware). Second, in the rendering room, you can select the name of the camera you want to do the picture from. I sometimes get something all set up, go render it, and discover it's using the wrong camera... :)