Milestone reporting across sheets, grouping by sheet name

Hello -

I have a working report to display milestones from across several sheets (projects). However, I'd like to add the project/sheet name as a parent, with the milestones listed as childs (like grouping) to make it easier to view?

Example:

Project/Sheet Name 1

Project/Sheet Name

Milestone 1

Milestone 2

And you would be able to expand or close the project /sheet name to view the milestones or not.

Is there a way to add this grouping level?

Answers