hey, I tried change the value of persondata flags of normal sim to werewolf's value and she indeed become a werewolf
BUT she doesn't get the look, she did the transformation every night , she do the limping walking style and she can't change her look on the mirror at night but her looks actually stays the same... Also tried to change a guy to a vampire, and got the same result, he acts like a vampire but without the looks
well, it's still an improvement anyway
EDIT: I GOT IT!!! I don't know how but I get the looks to change by pressing ctrl+shift+c and then esc... (open the cheat box and close it)
the looks change to werewolf, I even tried plantsim and he indeed have the looks of a plantsim with only 3 needs... not the leaf cloth though, but I can live with that
So I take that we wouldn't be able to change a sim to a servo and alien, would we?