Is this a premium plugin in Minecraft?

I think many know the server '' Griefergames.net '' this has the new function from a rank / premium to make I want the same just that you can set the rank which should be in the config and that this rank only 2 weeks holds and you can set the time yourself or 1 week does not care and that of the command / premium has run a cooldown who knows such a plugin?

You have to program this yourself / your devs.

But one of my devs is programming the GrieferGames system, it's pretty well known, maybe you know Niklas409.

https://www.spigotmc.org/...res.46956/

Maybe he adds that too, or is it.

I knew him very well I was there while programming the plugin. But I can't program myself and I have no devs.