You currently cannot have different skins on character slots using the Upload Skin button. If you want to do this, you'll have to make a skin pack, and to put skins from the skin pack in different slots.
Anthony Havristiuc
You currently cannot have different skins on character slots using the Upload Skin button. If you want to do this, you'll have to make a skin pack, and to put skins from the skin pack in different slots.