The print widget is very useful to my users however one issue that they are running into is that the print widget doesn't allow you to preview the area that will show up on the map. I tried to utilize the custom widget https://community.esri.com/docs/DOC-3841-print-plus-widget-version-116-july-12-2015 however when I published it and tested it out I noticed that it was showing an area that was being "Printed" but it didn't actually include that area. We are looking for this similar form of functionality to incorporated into the default print widget.