问题 I need to add some fields to my work item types in an existing team project to support integration with other toolsets. However, after adding those fields in my work item type definitions using the Team Foundation Power Tools Process Editor, and following the instructions detailed here, the tickets still do not contain this field. Instead, it is only new tickets that are created with this field. Is it possible to add a field to existing TFS work items, rather than just updating the Work Item