Board Thread:LotR Mod Technical Support/@comment-35405430-20190302002244/@comment-29298199-20190302051609

I think he meant accessing ME without spawning in any mobs.

Maybe you can try using /gamerule doMobSpawning false ? If not, I have no clue. Don't think there's a way to manipulate ME at all. You could also try to go where no Mobs spawn naturally, like an abandoned part of middle earth.