Bukkit

Hello! I was wondering if there were commands to get classes/kits for this plugin, and if there are, I think you should add them to the Bukkit Website and the /help zombie survival! And if there aren't any, could you please add them?
Here's an example of how I think the command should look (in my opinion): /zs class <Class Name> and /zs class leave.

That's pretty much it. Hope this isn't too hard because I think it would very useful.
Thank you!