Michael, this script works very well! It works with joined surface or solids. It will be greate if it works with surfaces too. A this time I have 2 scripts SelectOuterLoopsAndDelete that work with surface and SelectOuterLoopsAndDelete2 that work with joined surface and solids. Could you make pleas SelectOuterLoopsAndDelete2 to work with surfaces too? If selected more than 1 surface it have to run trim if only one than just delete outer loops. It would be good to have one universal script.