In the New Experience you can suppress native fields such as Planned Completion Date by way of layout templates. You could then create a custom field that defaults to blank or "N/A" .

Hello all - This one is driving me crazy and I don't know what I'm doing wrong. I just want to set column widths in a View. Using text mode for the column I have the following: displayname=linkedname=directnamekey=Strategic Priorityquerysort=DE:Strategic PrioritysortOrder=1sortType=asctextmode=trueu...