in classic map viewer, the adjustments you make to the popup are reflected in the table view - ie if you remove 3 fields from the popup, you will NOT see these three fields in, say, a detail panel in a dashboard. I have noticed that when you configure a popup in the new map viewer, these changes are not reflected in other items that display attributes. ie - what you see in the detail panel does not reflect the changes you made to the popup.
How does one control fields/alias' etc... for attribute display in new web map viewer?
Thank you,
Randy