The ability to not show armors and/or kits would be great. I'm not aware of this option, but if it exists please let me know where it is hiding! I couldn't find any discussion on it either. I just really don't like the way the armor looks. I don't feel like a Starfleet officer running around like that. It also makes uniform customization practically pointless.
I'd like to customize what is shown more. Instead of a "show all" or "show nothing" feature, I'd love to accessorize as I see fit, maybe just adding elements of the kits, or parts of the armor (and choosing the armor colors and patterns ourselves too)