Bug: Yup, that fixed it. Working perfectly with that scene now (shame Poser froze my computer while rendering - it tends to sulk if I swap away to something else while rendering) Suggestion/request: Actually, I was sort of edging towards having a bash at this myself as a Python learning experience. I was thinking adding a fourth selection box with a list of options, picking the options up from the script itself, allowing someone to add their own within the source rather than within the interface. Pick option off list, click on select this button and that updates the selection box or settings. If you have no objection, I'll have a bash at it over the weekend and get back to you with my efforts (if any)