House's outside owner's command

/pk - Enable being hit each other
/nopk - Disable being hit each other

Spar arena owner's commands

/unlock - Enable anyone to enter the arena.
/lock - Disable anyone entering the arena.
/toggle - Enable player to spar

Spar arena players commands

/focus - Enable to focus the spar arena on/off
/switch - when both player's inside the arena say this, their positions will exchange.
/start - when both player's inside the arena say this, the match will begin.
/leave - leave the spar queue.