Thanks for the quick answer! That's just what I was looking for. One small, problem, though ... the modding I want to do seems to trigger the cheating protection. Now I play purely Single Player. Don't get into MP at all. Is there no way to disable the cheat protection so that I can create and play my Pretenders exactly as I wish?
Ah, so *that* was the condition. I knew there must be some way to use modded pretenders in multiplay, but as I have never had to find out how it works I just solved it by disabling cheat prot for my singleplayer games.