can someone edit this so i can have more than 1 option for sale.Everytime i edit it it keeps erroring.Thanks

{
  "Shops": [
    {
      "SellOrders": [
        {
          "SellItem": {
            "ShortName": "sulfur",
            "Quantity": 1,
            "Blueprint": false
          },
          "BuyItem": {
            "ShortName": "stones",
            "Quantity": 20,
            "Blueprint": false
          }
        }
      ],
      "WorldName": "Store",
      "CommandName": "test",
      "SkinId": 860969934,
      "BuildingBlockedDistance": 50.0
    }
  ],
  "Notification": {
    "Enabled": true,
    "FadeIn": 0.5,
    "WaitTime": 2.0,
    "FadeOut": 0.5
  }
}​