How might I go about letting all of Epic Knight’s items dropping from chests/mobs?

I've already got a somewhat working loot.json with InControl, but it makes it so that a zombie will drop all 400+ items, instead of what I hoped would be a chance to drop one of the items.

Does anyone have any ideas how to either A) edit my loot.json to make it a chance drop, or B) a much easier way to just make all of the custom items from Epic Knight drop randomly. Trying to play AsianHalfSquat's Elden Ring mod, and it feels way less fun without all the cool loot findable in the world.

Thanks!