It would be great if there was the ability to add report level slicers to cut down on the number of reports that would need to be created in order to show different views.
Example: We have two products that have different health scoring that currently requires us to create two different reports. If there was the ability to consolidate into one report where a user can decide to toggle between products to view the scoring information it would save on duplicative reports that need to be maintained as well as UI real estate.