With this skript if you have a
Dupe Item in your inventory you can dupe the item held in your hand. This skript lets you blacklist items that you don't want to be duped. With the datapack you can also add ways to get the
Dupe Item by completing challenges. You can also craft the Dupe Item.
/dupehelp - Shows a list of all dupe commands.
/dupe - Doubles the item in hand.
/dupegetitem - Gives you the Dupe Item. (OP only)
When you have downloaded the DupeItem.zip you need to unzip it.
Once unzipped put the Dupe.sk file in your scripts folder.
Then put the DupeDatapack file in your datapacks folder.
Once you have completed those steps just restart your server and you should be good to go!
If you have questions or need help you can look at spigot-help forms on my discord server to see if you question is already answered
https://discord.gg/GS7qr5VJrp. You can also message me on discord WishfulJON64#8048.