So, I've just been introduced to this XmlColumnDisplay which has taken over my ability to add delete Column Profiles individually. In following instructions on how to make changes going forward, I have discovered I have multiple Data files in my Administrator user profile and am not sure whether I can delete everything but the most recent. Could you advise? Can I delete all but the most recent one (including the ones marked MULTI-ATTR:2 and MULTI-ATTR:10) and just update the one marked Data9 for any new changes?