I believe you mean Ballbarian's God Editor:
http://www.shrapnelcommunity.com/thr...&Number=591888
I have never seen a pretender editor besides the Dom3 game itself, and I don't think that such a thing would exist.
There is no specification about the *.2h file format, too. While it would certainly be useful for lots of things, it would directly lead to hacking and cheating in MP games.