How to make owner field editable when clicking on edit button in detail page?

A seemingly simple question, but useful to understand if trying to update a record daily via Process Builder.  For instance, I want to update a date field on a record to today's date every day (since formula created dates are not allowed for use in Rollups), so if the process itself counts as an udate, it should then be circular enough to do this.  Thoughts/recommendations?