A plugin that automatically changes a person group

I was thinking that someone could make a plugin that where like as soon as someone read the rules they had to click on a button or sign that will change there group to a group with builder rights i thought of this plugin because it was getting really annoying adding every single person to the builder right group. if this plugin already exist please tell me what it called so i can add it to my server

 

...you could just set "builder" to default group in the permissions options file.

 

stats plugin should do it, we have a newbie tutorial on our server setup where at the end they drop an item to activate the achievement and get promoted to builder.

 

which stats plugin you talking about

 

Permission Plus has this with another plugin, I think CommandSign. I don't know if it's right, but it looks like.