I've always been a HUGE creator myself, 10+ players, sometimes 32 teams, ect. I don't play football anymore but I'd make at least 5 teams back when garbage Madden allowed more creation opportunities instead of trying to protect their precious team brands.
Anyway, a huge step in the right direction and a QOL change for create-a-team would be copy/paste entire home/away/alternate kits.
Uniforms usually feature slight variations home to away obviously, so all I want to do is finish creating, coloring, a kit, then simply paste it to Away and change whatever needs to be changed like socks, making jersey white, ect.
I don't think that's asking too much.