/serversigns xp

Rather than imposing a financial cost and deducting an amount of money from their in-game balance when a player uses a ServerSigns-controlled sign or block using the /serversigns setprice <cost> command, server owners can instead opt to deduct a number of experience levels from the player instead. Use this command to define the number of levels that should be deducted from the player when they right-click the sign before any action commands are invoked such as granting the player a reward.