IMPROVE: make label the default group list order

[ramirezfranciscof]

Partially addresses #4572.

[sphuber]

I think this would address #4572 fully, wouldn't it? As per my comment the other parts are already present.

[ramirezfranciscof]

Mmm I think I still would like to have the last item too. What you say is true: technically startswith does part of it but (1) it is a bit annoying having to add the extra option, and since the command does not have other arguments I think it is quite natural to use direct arguments as shortcut for that, and (2) it does not autocomplete, does it?

I started playing with click options to see if I can make something that does both.