I am using Portal for ArcGIS 10.6 (Windows), I am using the Web AppBuilder for ArcGIS with the Dashboard theme. What the costumer wants to display the coverage footprints of 1:50,000 Topographic Line Maps (TLM). The Feature layer has an Edition date field that is of Type:date, and they want to see info-graphics (number) with the Oldest date and the Newest Date in-view. Info-graphic doesn't see "date" as a "number" so you can select it as a field. Is there a way to do this?