Entity Zoning Supervisor is your free, open source, and easy to use solution for deciding what entities go where. It is great for packmaking or for personal use.

DOCUMENTATION LIVES AT THE WIKI! LINK:

https://github.com/eerussianguy/Entity-Zoning-Supervisor/wiki

Config files

Your config files live in the .minecraft/config/entity_zoning_supervisor folder. Empty config files will be generated if you launch the game to the main screen once with the mod installed.

spawn.json

This file manages the addition of mobs to biomes. This works by hooking into the natural spawner. This means that mobs added using this json file will integrate into the vanilla spawn manager and spawn at a relatively normal rate.

spawn_restriction.json

This file solely prevents spawning, based on provided predicates.

rule_set.json

Tired of specifying restrictions over and over? Me too. This file lets you set common rule sets for use later.

entity_loot_filter.json

This file allows you to filter, replace, and deny entity loot drops.