/plate add - Adds the block you're looking at
/plate remove - Removes the block you're looking at
/plate edit open - Toggles the player list between black- and whitelist. Default is blacklist
/plate edit add <player name or uuid> - Adds a player to the player list
/plate edit remove <player name or uuid> - Removes a player from the player list
/plate status - Shows information about the block you're looking at