Before you add a chest reward, you need to have the basic reward setup. If you have not done that already, you need to head here to set up the base for the reward.

Fields:

Field Name	Type	Default	Field Description
item	String	minecraft:dirt	The item that has a chance to spawn in a chest. - Format: ModId:Item (Blocks are also excepted as well as items)
chance	Integer	50	The percent chance that this item has to spawn in the chest. - Range: 0-100
meta	Integer	0	The Meta of the item that spawns in the chest
amount	Integer	1	The amount for the stack that the item will spawn in

Example:

{
	"Chest_Reward": 
	{
		"chance": 0,
		"Chest":
		[
			{"item":"minecraft:dirt", "chance":100, "amount": 1},
			{"item":"minecraft:stone", "chance":1, "amount": "%%RND(32,64)%%"},
			{"item":"minecraft:gravel", "chance":4}
		]
	}
}

Config Tutorial:

• COMING SOON