Then I’ve created a simple table with some data, and a calculated field with a concat() of the values of the fields Region, Country, City (just to be used as a “title” for each section) and the output is a report like this:
Are you still working on this or were you able to find a solution?
While I think the repeating sections are your best option, to your point there is no hierarchy of nesting functionality within the repeating sections. I think your best option is to adapt @andrepgn’s workaround.
I have not found the solution yet. I think group header, footer of the report is the essential thing and QS should have some ways to cover it. This should be feature request