Drilldown template listed do not have my reports to choose from

Document ID : KB000115258
Last Modified Date : 18/09/2018
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Question:
When I click on the drilldown template listing in the list designer it does not show me a list of my reports to choose from.
Answer:
- open list designer
- create a new view
- click on the green plus on the gray bar to the far right and just below the Apply button (Add group)
- as soon as you do that you should then see how to configure your groups listing, and the edit button now appears next to the magnifying glass
- selecting the magnifying glass next to the Drilldown Template should now show you the list of your reports to choose from to connect it to this new top level report