Turning sims into Vampires/Aliens in CAS

As stated in the title, we need an option to change a sim from human to alien to vampire, right in CAS. I can't tell you how many times I've started creating a sim, and then, after already working on their face and outfits for 20 mins, I think, "Hey, I think this one should be a vampire."
Unfortunately there's no way to change your sim's occult without starting all over from scratch, which is kinda frustrating.