Making labels visible in grouped views

As a user, I want to be able to see the labels associated with registrations in the grouped views.

Explanation:

In the regular (non-grouped) view, I can filter and view labels, but as soon as I switch to a grouped view (e.g. by customer or project), the linked labels are not visible. This is unfortunate, because it is precisely in the grouped view that I get a better overall view and want to be able to include labels in my analysis or reporting.