We use groups to identify projects, and items for each project step. The group column summaries (displayed below the last item, or aligned with the group when items are collapsed) are so valuable for a high-level understanding of a project. It would be incredibly helpful it we could filter boards/tables/widgets based on the group summaries – not just the individual items. For example, I would like to see all groups/projects where the status summer/all items are “Not Started.”
The group summaries are so powerful, I’m honestly surprised filtering based on group summaries isn’t availabe!