I'm trying to build a city scene using the amazing QTown script. It's all looking great, but the thing is is that I'm trying to make a night-time scene and as such want to add "lights" in the windows of the buildings in a random fashion. The texturing is set up so that the files for colour and reflectivity (for the windows) are repeated across the geometry. I have a simple file that I want to plug in to the "incandescence", but I want this to be randomly placed so as to avoid any appearance of repetition. Can anyone help? Is there an easy answer to this?