Media actions explained

Media actions can be used to enrich your stories with optional media behavior and map interactions in sidecar slides. This video provides a brief overview of how to create various styles of media actions and how they can be used with maps to change the scale, extent, and layer visibility of your map or swap it out for another form of media entirely. 

Resources 

Supercharge your stories with map actions - https://www.esri.com/arcgis-blog/products/arcgis-storymaps/mapping/supercharge-your-stories-with-map-actions-beta/  

Map-based images & ArcGIS StoryMaps: a treasure trove of possibilities - https://www.esri.com/arcgis-blog/products/story-maps/constituent-engagement/media-layers-in-arcgis-storymaps/