I am trying to meet a request for field staff to collect information in field maps, and have UTM coordinates supplied on-the-fly as pop-up attributes and ideally populate the attributes of points collected in the field. Is there a way to do this? Does it require publishing the data in UTM zone 11 projection? I am open to using map viewer classic or trying map viewer. In the past, I had made a web map in classic map viewer to share with field workers in a remote environment with offline maps.
Have a look at the reply I sent to question: Autopopulate UTM (NAD83) coordinates
It should work for you as well.