Hi Robert,  I am an apprentice with my organization's GIS team.  We use a number of your apps in our WAB interface, and we are trying to understand the following: 
The anticipated complexity to build an ‘in-panel’ editing tool to improve the stock AGOL tool.  Ideally this would be something similar to ‘Geoform’ as a widget in WAB, but realistically we are looking for a stable interface to add and edit features.
If you have any thoughts they would be appreciated.  Thanks for your time!
Andrew