I had an idea for a plug-in but unfortunately, I am dumb and don't know this kind of stuff. So I registered here in hopes to see if someone could make something like this: I was thinking that there should be special signs that when you right click them you get promoted from a certain rank to another rank. If this has already been made I truly apologize to the creator of the plug-in for somewhat stealing his idea. And if it has been made I'd appreciate a link.
Welcome to the bukkit community, if no one can find you this plugin I will take it on for you Will Check back every now and then
I'll shamelessly promote my own plugin here: http://dev.bukkit.org/server-mods/scrollingmenusign You can create scrollable signs (or maps, or spout menus) connected to command menus which can run whatever command you want to configure, including a command to promote users (obviously the command depends on the permissions plugin you're using). In the interests of being even-handed, I'll also mention http://forums.bukkit.org/threads/mech-commandsigns-v1-2-0-issue-commands-using-signs-1317.33860/ by @HansAnderson (a rewrite of Fluff's original CommandSigns plugin) - it's more narrowly focused on just clicking a sign and executing a command in response.
Yeah I am going to need a little more help as to what to type in commandsigns or in your plugin so that it does /pex PlayerName set group Member