For example, a certain area will be blocked off by a large fence (or whatever block you wish). This fence is only present for [Guests]. However, upon ranking up, the fence disappear, and you can walk through it. When [Guests] see you, it will appear as if you are walking through the fence. Also certain blocks could be added upon ranking up. For example, once you get a certain rank in a prison or something, signs will appear saying "You have saved the prison! thanks you!" or something. Des this plugin exist?