Notes: Worlds plugin found at https://poggit.pmmp.io/p/Worlds/1.0.9
Command examples
/worlds tp <worldname>
/worlds <info|list>
/worlds <create|delete|load|unload|tp> <world> [type]
/worlds set gamemode <survival|creative|adventure|spectator>
/worlds set <build|pvp|damage|drop|hunger|fly> <true|false>