Solved Recycler

[CringeBoy]

on right click:
  if clicked block is hopper:
    cancel event
    wait 1 ticks
    open chest with 3 rows named "&aRecycler" to player

This is my currently code. Can someone tell me how I can make something like: If you put inside the gui of the hopper that i've created, a orange dye and you get back 10 iron? not a shop, an instantly trading system. if you put the orange dye inside you get instantly back 10 iron

 

[Minecoll_YT]

Are you using SkQuery GUIs again?
[doublepost=1621801202,1621800665][/doublepost]And the event you are searching for is

on inventory close

 

[CringeBoy]

But how do I make it if player will add a orange dye in the gui, to receive 10 iron back and the orange dye to disappear

 

[Minecoll_YT]

on inventory close:
  loop all items in event-inventory:
    if loop-item is 10 dirt:
      remove 10 dirt from player
      give 1 iron to player

you should be able to change and add items urself

edit: DO NOT USE THAT CODE!
More information: https://discord.com/channels/135877399391764480/399406334526750723/846144071445774376