AT:
- when I open the edit view of the combined report, I can see a list of the available singe reports
- I can select multiple single report with table visualization from the list
- Then I will see a table of both reports data combined
- The preview will be next to the selection list
- The available reports must then follow the following criteria:
- same group by
- same visualization
- same view (but combining avg, min, max, median (operations) is possible),
- process definition can be different.