Face_off, I have just purchased the script and have been getting some excellent results. Thanks ! One problem though, is that the script doesn't seem to be able to handle (display) more than 5 lights. For example, I used the Fall 002 - 05L light set from the RDNA HDRI2 package. It actually has 8 lights, but only the first five get displayed on the script's dialog. The brightest one (Light0005) is one that does not get displayed. I tried using PageUp, PageDown and the various arrows to try and remedy this but couldn't work out how to get access to Light0005 as the brightest light. Can you help with this ? thanks, Andrew