Bukkit

What is the issue?
I need help doing mobarena with command signs.

Please provide any additional information below.
I figured out how to do mobarena with command signs. I did "?/#sudo <name> ma j default"

(Note: /ma j     is the command to join the mobarena)

Now this worked completely fine. Now, I wanted to disable the permission to join the mobarena on the default group, so that people MUST use the sign to join. In my permissions(group manager) I put in "-mobarena.use.join" which disallows people to use the command "/ma j".

Now heres where the problem comes. Nobody can use the sign now because it says that nobody that is default has permission to the command.
I want to know how I can make it so that my command signs override the permission "-mobarena.use.join".

PLEASE NOTE: I must keep it with /#sudo <name>     in the front, because "/ma j" on a commandsign DOESN'T WORK. So I have to make it so that players can #sudo in console using that sign. Please help!

All help thanked!,
Steven

SOLVED--

Heres what I did: I had my default permissions group named "default". This group doesn't have mob arena permissions. Then I had a group named "owner" that has mob arena permissions. Heres what my command sign looks like:

line1: /^manuadd <name> owner ==== (^ = run as op) This makes the player that clicked the sign join the owner group. line2: /#sudo <name> ma j default ==== (#= run in console) This makes the player that clicked the sign join get forced to join the mob arena line3: /^manuadd <name> default ==== this makes the player that clicked the sign go back to default.

This way, you become a group that has permissions to mobarena, go to the mobarena, then lose permissions to mobarena.