I have a web map, created in the Map View Classic which I am sharing as a Web Application on ArcGIS Online.
I created this application using the "Create app" and "Web AppBuilder" in the browser. I have added a number of basic widgets (default) from the options in the application builder.
I have also created a second web map using the new map builder on AGOL. This new map uses clustering and custom Arcade scripts to present data in the web map in a way that makes sense. Using the "Instant Apps" option in the Create app options, I have created a "Minimalist" Web App from the templates provided.
There are some widgets / tools in the Web AppBuilder, I would like to have in the "Minimalist" Web app. As an example, the "Add data" widget is not present in the "Instant App".
I can view the source JSON of both applications using the ArcGIS Assistant.
Is there a way to edit the source JSON of the Instant App to add functionality to the application?
If not, is there any other option / workflow to add functionality between the various application templates for use on ArcGIS Online?