Anyone know a cheat to age up a sim that isn't done in CAS?

I had this same problem and came on here asking about it. I had an elder sim who wouldn't die no matter what I tried. lol.
What ended up working, and I've done it a few times since, was just changing the lifespan to short until they died (I normally have it on normal). Most Sims I've done it with have died within a day or two. One died the same day.