Allow users to hide fields from related tables in a pop-up

[AmyRoust]

I'm stuck in Map Viewer Classic for any web map that has a related table with records that need to be displayed in the pop-up because I can't hide unnecessary fields from the related table. Here is an example of a related record in a pop-up:

At minimum, I need to be able to hide OBJECTID, ContactActive, and CCC, which can be done in Classic. Ideally, I would be able to create a custom table where I could concatenate the first and last name into one field, and then concatenate the phone number and extension into one field.