Features:

Interactive Map - Zoom and pan around.

SetBaseMap - Change the base layer of the map.

AddFeatureLayer - Add a feature layer URL to the map.

SetPoint - Provide a latitude and longitude to place a marker on the map

1. Add Maps to your Screens

2. Add your Layers over the Map

3.  Customize options through JS code.

ArcGIS Documentation

https://developers.arcgis.com/javascript/latest/