Unable to configure "COMMAND" or [ARGS] metavars when using click.Group

[gaston-haro]

When using click.Group you can customize options and arguments metavars but you cannot customize the COMMANDS autogenerated metavar in help output when you add commands to the group.

@click.group(options_metavar='<options>')
def cli():
    """A random set of productivity shortcuts"""
    pass

@cli.command(short_help='Some subcommand')
def commA():
    click.echo('This is subcommand A')

It would output:

Usage: cli <options> COMMAND [ARGS]...

  A random set of productivity shortcuts

Options:
  --help  Show this message and exit.

Commands:
  comma  Some subcommand

Resuling in inconsistencies between "", "COMMAND" and "[ARGS]". I would like to be able to produce:

Usage: cli <options> command [args]...