I believe this button here is for adding related records to the parent. From this page (screen shots seem maybe out of date https://doc.arcgis.com/en/field-maps/ios/help/quick-reference.htm Is there a better help page that talks about these buttons more? My idea would be a long press in the app could tell the user what the button is.


But the key is not added when using the + button like it is when going into related then using the Add button.
Users are getting confused they cannot use this + button on the parent or the big blue one on the map.
thanks