Hello, I have created a Sidebar style Instant App in ArcOnline.
The map includes a layer of polygons with a field for the area of each polygon.
Sometimes it is useful to know the sum total area of multiple selected polygons.
Currently I can select some polygons, export to CSV, and find the sum of their areas in Excel.
Is it possible to configure the app to automatically display that sum of a single field of selected features within the app, either within the table or on the sidebar or as a box/widget on the map itself rather than exporting to CSV to find that sum?
