[Angelwhite]

Since December, when i discovered the UIBuilder program i've messed around with it but never put anything to the test until recently. Due to a friend downloading a ui that allowed him to trade up to 9 items, I wanted to do that too. I changed the window and made it to where it had 12 item spots, but when i went to try it out it only let me trade 9 items. when i tried putting something in one of the other three spots i got the message that i couldn't trade that item for some reason. After making sure i wasn't trying to trade a no trade item, i figured it was in the programing/writing (sorry don't know what you call it) but i can't figure out what it is since all i did was duplicate the existing 6 slots. any suggestions on getting those other three slots to work?