I am building a number of dashboards for a Map Series StoryMap for our current Bushfire season.
In one I have a selector for National Parks that I enabled the None Option on. This also has a spatial filter to a list of bushfires.
Currently if "none" is selected in the Parks Selector all bushfires are displayed in the List. This does filter down if you pick a park. If you select a Park where a fire hasnt occurred then it will display No Data ... which is just what I want to to do.
My problem is that I want the List to display No Data if the Selector value is None ....is this possible??

Many Thanks
Chris