gistfile1.txt

virtualchest {
  TextTitle = "&d&lStone"
  Rows = 3
  AcceptableActionIntervalTick = 20
  Slot0 = {
    Item {
      Count = 1
      ItemType = "minecraft:stained_glass_pane"
      UnsafeDamage = 14
      DisplayName = "&d&nSell 27 Stacks"
      ItemLore = [
        "&r",
        "&dInformation:",
        "&d&l* &7Quantity: &d1728",
        "&d&l* &7Sell Price: &d$9",
        "&r",
        "&d&l(*) &dClick to sell this item!"
      ]
    }
    PrimaryAction {
      Command = "cost-item: 1728; cost: -9; tell: &a&l(*) &aYou sold &a&n64x&r &a&nStone&r &afor &n$9&a."
      HandheldItem {
        ItemType = "minecraft:stone"
        Count = 64
        UnsafeDamage = 0
        SearchInventory = true
      }
      KeepInventoryOpen = true
    }
    Requirements = "cost-item:1728 >= 1728"
  }
}