Could you please explain the hidden outfits cheat? I haven't heard of it or used it before.
I've attached a screenshot of what I'm getting in the CAS screen. I wasn't able to get any information at all from it.

boolprop testingCheatsEnabled true
Then use Shift-N before creating a Sim to show hidden outfits.
Shift-M will hide them again.
Be sure to turn off the cheat when finished:
boolprop testingCheatsEnabled false