Topic category: Feature requests and ideas for MCreator
When making an item, there should be an entire page dedicated to making it spawn in dungeon chests. First, there would be an option to check if the item can spawn in dungeon chests at all, which when checked will enable the rest of the options. Here, you could choose one or multiple loot tables already present in Minecraft in which the item can spawn. Then it's rarity. Then the maximum and minimum amounts.