So I've had this problem forever. How do I make it so everyone is in creative mode when they go to the PlotMe world?

I'VE ALREADY TRIED:

- /mvm set mode creative while in the plot me world.
- /mv modify set game mode creative while in the plot me world.
- I've gone to my multiverse folder and then gone to my worlds.yml folder and I changed SURVIVAL to CERATIVE .


I've tried all of these things and still. It doesn't work. Please please help I'm desperate