How to group a table, with the group field on top?

1

I’m trying to group, with subheadings, like this:

Worked Days in Week 1
Monday
Tuesday

Worked Days in Week 2
Monday
Tuesday

But instead I get the labels “week 1” and “week 2” in the right-hand column, stretched across all the lines they apply to. Like this:

Worked Days in Week 1 Monday
Tuesday

Worked Days in Week 2 Monday
Tuesday

Which is fine, but I’ve got a lot of text there, and I’d rather not waste column space.

When I group them across the top, I get this:

Worked Days in Week 1 Worked Days in Week 2
Monday Monday
Tuesday Tuesday

Which is also a useful view, especially for Kanban charts, but not quite what I’m looking for here.

Am I missing something, or is this option not available yet?

Thanks!
– Maria