Hey there first off Amazing plugin, Ok so i have /shop plugin and i added it to the shopping list but i just want to know how i would make it spawn with a command when buying i have this atm

"Pre-Built Farm": {
"DisplayName": "Pre-Built Farm",
"CraftAsDisplayName": false,
"Shortname": "",
"MakeBlueprint": false,
"EnableBuy": true,
"EnableSell": false,
"Image": "",
"SellPrice": 0.0,
"BuyPrice": 9000.0,
"BuyCooldown": 0,
"SellCooldown": 0,
"BuyQuantity": [],
"SellQuantity": [],
"KitName": null,
"Command": [
"paste PaidFarm001 \"$player.x $player.y $player.z\""
],
"RunCommandAndCustomShopItem": false,
"SkinId": 0
}

Now i have tried "Paste PaidFarm001" and that has not worked either any help would be awesome thanks for reading.