[Suggestion] Add multiworld support!!

[KuaterCraft]

So here is a suggestion add multiworld support means each world has different crates and keys and make a command which gives player keys in different world like this ex command /magiccrate (cratekeyname) (player) (world)
and also i have perworldinv plugin so does that issue with the plugin if no pls tell and if yes pls even tell and pls add this suggestion it will resolve my 80% issue on my server !!