There is no setup required, unless you decide to change the options which are found at the top of the Skript.
COMMANDS
/diceroll-clear (admins, it clears all dice roll data)
/dicerollcreate <bet> <dice number> (creates a dice roll game)
/diceroll (opens the main GUI for stats, and other things!)
/dicerollleaderboard (opens GUI for the leaderboard)