Hey I'm trying to make a zombie modpack with this mod and I can't figure out how to change the mob spawner settings to only spawn with zombies and spiders. I read the wiki but I'm not sure where to slot the settings, whether that be in the config settings or if there's a different place to put them. I require help plsss.

First you need to tell me the version

The lastest version: lostcities-1.12-2.0.22.jar