Just choose to use an item in battle with W-Item. Then when you can choose your second item, hit the cancel button. This will increment that item's quantity by one and take you back to choosing the first item to use again. Continue to pick and item to use and cancel to increment the amount of any usable item in battle that you want to. This is especially helpful for duplicating Elixirs so you can give them to the Magic Pots for extra AP in the Northern Crater. :chef: