Commands:

GMC - Sets your gamemode to creative
GMS - Sets your gamemode to survival
GMA - Sets your gamemode to adventure
GMSP - Sets your gamemode to spectator
Fly - Enabled/Disables Fly Mode
Kick {player} - Kicks a player from the server
Ban {player} {reason} - Bans a player for the specified reason
Unabn {player} - Unbans a player
Broadcast {message} - Broadcasts a message to the whole server