Aternos Minecraft Server, Bukkit Powerranks how can you give players rights to use / warp?

Mi
- in Worlds
1

I have an almost completely finished very special city build and I only have one problem: I already had a few players there but they could not use / warp farm world because they have no rights or so they said. All warp commands work as owner or admin. My question is how can I make the normal player rank / member use warp commands? In addition, the IP address is Speerton.aternos.me the server is placed online at 6 p.m. If it goes off. Would be nice if you come over.

gl

Which plugins do you use?