I am currently creating a survival server for only me and my friends to play. I wanted to make the server more fun than just the plain survival by allowing them to buy commands ( not for advantages ) to make it more unique. I found a plugin called 'ServerSign' where you can apply commands to signs; and on the website it says "Implement if/else and return statements in commands on ServerSigns" so I was wondering if this allows me to use signs to sell permission nodes for a price. Eg: friend want to buy /bcast for $50 but he has $32, when he right clicks the sign it will reply "you do not have enough money!" friend wants to buy /bcast for $50 and has $152, when he right clicks the sign it will take away $50, give the user the perm node and send him a message: "You have successfully bought /bcast!" Any help on this would be greatly appreciated, thanks!