Permissions would be awesome for players who do a rain dance or become expert farmers!

I'm not sure what you mean. Can you elaborate?

Sorry. To either be able to have a boost at all or to have different boost levels.

Example: watercatcherboost.use or watercatcherboost.farmerbob

This way it could be used for vip, timed permissions, etc.

Yeah, I can look into possibly adding that in the future.