Please describe your suggestion
Being able to have commands like /command subcommand subsubcommand argument within the annotation-way of building commands.

Please supply examples of the desired inputs and outputs
Example:
Input: /permission group register <name>
Output: Creates a permission group with the provided name.
Input: /permission group list
Output: Lists all permission groups
Input: /permission rank register <name>
Output: Creates a permission rank with the provided name.