It's funny, I just read the exact answer to your question yesterday, when I was filling an order (first one in about a year).So, if one were to Read The Fine Manual ... you would come across this passage (Section: 1.6 Intent):
http://www.softwarespecialties.com/wizedit_docs.html#1.6Intent
As for other "missing" features, I won't give your character a sex change, and no DNA-splitting or gene-splicing to switch races either. If you need changes that drastic, I suggest you start a new game, with the character types you really want.
I think Mad God's editor will do all those other things ...
Really, my intent with the editor was to give you easy shortcuts to get the things you were determined to get ... and fix things that got broken.
Tools for Wizardry(r) 7