I have multiworld, the plugin and i have 4 worlds. The main spawn and Wild world, for the people that bought ranks can use /fly. I also have a Hunger games world, however those that have a rank use /fly in the hunger games and arn't blocked by the Survival games plugin and stuff so i need to disable The command /fly in that world. I use PEX, and i don't know how to do this. Please help.