/crosshotbar "display" subcommand does not function

Time: 4:30 PDT
Frequency: Always Occurs
World name: Hyperion
Character name: Laraul Lunacy
Retainer name: N/A
NPC name: N/A
Monster name: N/A
Class/Level: N/A
Party or solo: Both
In-game time: N/A
Area and coordinates: N/A
Housing: N/A
Steps:
1. Type the command "/? /crosshotbar" to display the help for the /crosshotbar command.
2. About 30 lines down you should see a help description for the "display" subcommand.
3. Attempt to use the "display" subcommand as detailed in the help.
4. It will return “display” is not a valid subcommand.