there are many plugin that can use a Command by clicking Sign but we have make a place for the sign but, what if we can use a Command by using the enchanted book it is simple and don't need any place in Command book you can use the anyother plugins the server have. -Setting Command Book.user - Command book for the one who use the book Command Book.other - Command book for the onw who user want effct on how to use - In economy server you-the admin- can sell a telepotaion book to users
Even better if the commands were inside of a written book, and user clicked on the command they wanted, like a hyperlink.