Our organization also needs this feature added to EB. Our clients need to be able to add Shapefile, Feature Class, and/or KML/KMZ files to be able to visualize there data in relation to data already within the web map. Our use case does not require any function with widgets at this time. Please try to add the basic ability to add data to visualize point, polygon, and line features.
My organization needs the add data widget in EB too. We have to use WAB developer with a custom widget that allows grouping of layers so that we can have both grouped layers and add data. This is a huge pain to do and host on the server. If EB had the add data widget our life would be much easier.
This capability is needed. Some sort of splash screen detailing WAB capabilities not supported by EB might be helpful. It is a little frustrating to start on an app in EB only to find out WAB should have been used. Perhaps adding the ability to launch WAB from the new Map Viewer would also be helpful. I resisted switching to the new Map Viewer; however, the ability to create group layers sold me on the new viewer.
This is getting frustrating. Our organization is also so keen to move on to using experience builder from web app builder and the fact that one of the most important widgets still is not available is ridiculous. This isn't good enough ESRI with the amount of resources you have.
I agree with @macands_admin. If Esri intends for the community to migrate to Experience Builder from Web AppBuilder, they need to make ALL of the widgets which are available in WAB to EB. This is incredibly, incredibly frustrating
For my organization, it would allow non-GIS users to help screen .dwg data submitted by applicants/contractors in a web format instead of needing to install and license ArcGIS Pro on their machines.