I updated my feature proposal about the need of UV mapping per texture channel or IM name (not global): http://www.neeneenee.de/blender/features/#23 and some cosmetics about the UV/ Image Editor: http://www.neeneenee.de/blender/features/#5 Karamba! Bart. Blender Feature Proposal: http://www.neeneenee.de/blender/features/