Are there any shortcuts for the hat command?

Yes, you can use ";accessory" as a shorthand.

What rank do I need to use the hat command?

You need the VIP rank or higher in HD Admin to use this command.

Yes, either run the command without specifying a player name, or use "me" as the player argument.

The hat command changes the hat of the specified player.

Type ;hat [Player] [Asset ID] in the chat while playing a game with HD Admin installed.

No, this command only works in games that have the HD Admin plugin installed by the game developer.

HD Admin VIP

This command changes the hat of the specified player.

;hat [Player] [Asset ID]

Example: ;hat builderman 186956940

This command changes the hat of the specified player. The effect applies immediately and is visible to all players in the game.