Allow configuration of the basemaps that show in the Basemap Widget similar to the Basemap Widget in Web AppBuilder.
Or, better yet, allow us to have more than one organizational Basemap Gallery group, and let us pick what "Group" of basemaps to use in the widget for each experience/app/etc.
In fact, this should be an option across the board (Web AppBuilder, Explorer, Field Maps, etc.).
Thanks,
R_