How would I incorporate "Feature layer hover" from the ArcGIS API for JavaScript 3.17 into an app that was created in WebApp Builder and then downloaded to be further customized? I was able to get the example to work for data that I am using, but I cannot
It looks like you tried to add your whole question in the title. When dealing with layers in the map you would most likely want to begin with the MapManager.js class to add some functionality to a specific layer.