That would be awesome.
The next best thing to do for now is to use mannequins of your ideal outfits and upload those to the gallery. But I'm with you, an easier option would be preferable!
I would also love outfit presets in CAS that are customizable so I can just put my favorite fits on my sims without having to go through the entire catalogue. My sims have 3 styles. I already know what they will wear. Just wish i didn't have to go through 78 packs and dozens of CC, lol.
I use mannequins with certain aesthetics and upload them to gallery to also fill up pre-built retail stores. I love mannequins.