There may be a case where you need to edit the same field of a whole bunch of complete submissions really quickly as an administrator.
To edit complete submissions in bulk, first navigate to your program.
Under the Submissions drop down menu, click Bulk Edit Complete.
Choose Columns to Edit
Click Show / Hide Columns to change which columns appear in the table and become editable.
Edit the Submissions
Submission form fields will become editable. Make the changes on the submissions that you need to fix and then click Save All.
Limitations
Currently you cannot mass edit Checkbox, Letter of Recommendation, and File Upload fields.