Create your own level modifiers

I decided to take control of my server's mob spawning 100% into my own hands(spawning all mobs using marker armorstands and the summon command)
and noticed that level modifiers obviously did not work in that case.
So I made a simple skill that has the same mechanics as the levelmodifier in the config, except you can adjust it for each mobs to suit your needs.

Reasons to use this
1. you can adjust the distances
2. you can adjust the distances for different types of mobs on the same world
3....

Create your own level modifiers