Unlimited Jersey Options

How would I go about making more kits for each team?? I wish there were more blank kits I can add for each team, instead of just having a Home, Away, and a third and fourth kit, plus the GK of course. Is the only way to add more kits for a team to manually do it through KitStudio? If thats the only way i'm screwed because that application takes ages to get stuff done with. Thanks for any response in advance.