Simply how to get different values like level, xp and skills
Client & Server
elv.getSkills(ply) - gets player's skill table
elv.getXp(ply) - player's xp value
elv.getLevel(ply) - player's level value
elv.getPrestige(ply) - prestige value
Server
elv.giveXp(ply, amount) - give xp function
elv.giveLevel(ply, ammount) - give level function