script("Open Custom Inventory"){
    trigger("interactBlock")
    @inventory("display", "Free Stuff", 1, "minecraft:diamond", 1, "woah a Diamond", "Click for a free diamond", 2, "minecraft:GoldIngot", 1, "Yay gold!", "Click for a free gold ingot")
}

Script("Custom Inventory"){
    trigger("interactInventory")
    if (@inventory("name") ~ "Free Stuff"){
        @cancel()
        if (@inventory("ClickSlot") == 1){
            @player("give", {"type": "minecraft:diamond", 1})
            @inventory("close")
        }
        if (@inventory("ClickSlot") == 2{
            @player("give", {"type": "minecraft:GoldIngot", 1})
            @inventory("close")
        } else {
            @inventory("close")
            }
    }
}