How do you change aura in db rb 2?

first you go to ultimate customize then item customize then pick a character then press a on a highlighted box and press a on etc and then accessory item go to the aura change and press a u should see it in the empty box. if u want to see the aura in action when u pick a character to fight with go to normal the scroll left until u get custom 1 the scroll left from super attack to item the enjoy.