It would be much more user-friendly to anyone who utilizes online map applications and story maps if there were a widget that IS the pop-up instead of the pop-up on the map that covers key imagery, boundaries and other information. I create story maps through Web App Builder for all of the departments at my county and this is their biggest complaint - they want to be able to click on a property and then move the pop-up box out of the way so that they can still see it but also see the entire property and surrounding land at the same time. At this time, you can't move the pop-up box out of the way and it covers the other information they need to be able to see.
If a panel widget option in WebApp Builder could show the pop-up box information, this would make all of our mapping efforts much more flexible and efficient.
The problem with custom widgets is that you cannot publish them easily through ArcGIS Online Portal but they can be used more easily in our internal Enterprise Portal.