Dex - thanks. I don't know if I could have "thought" about it either. First I "push buttons" to see what happens & then think how it can be used. nyar1at0tep - the G buff thing dosn't work too well on MAC OS (or I don't). Anyway I think the texture map would be workable. litst - I follow what you'r saying but I think the scale would still remain constant from front to back. If you start at the front with the Y scaled at 50% you will end with the Y scaled at 50%. I'd like to start at 100% scale at the front & end with a 10% scale at the back. I think I can draw a black & white texture "mapping area" image for the regions & use that in the blender channel. Not quite as flexible but should work. Thanks for the suggestions.