[Mod Request] Custom Mob Spawner 1.12.+

Hello, Aternos.
Custom mob spawner is needed to enjoy Mo 'Creatures in 1.12 onwards.
Name: Custom Mob Spawner
Links to the Mod Version: http://www.9minecraft.net/custom-mob-spawner-mod/ ; http://www.mc-mod.net/custom-mob-spawner-mod/
Description:

is a utility for Mo’ Creatures mod. It allows you to set where the creatures spawn. Without it Mo’ Creatures mobs will not spawn.
Thanks!