So I am trying to make interchangeable NPCs. Right now I have the game set that you pick up a chocolate bar and you trade that in to an NPC at a booth. The NPC gives a cake and then is hidden. I'm stuck on getting the next NPCs to show when I want them to because they show up in the same spot. How can I resolve this? I have 7 NPCs that are in that one spot, but different items must be traded for them to move on to the next NPC.