Ensure you have already run audio transcription on your file.
Highlight the word(s) you wish to redact and right-click to redact.
Adjust the start and end time of the portion to redact by clicking on the corresponding audio strip beneath the time bar.
To unredact any portion, simply right-click on the redacted portion of the transcript and click 'Unredact'
Be sure to save all edits at the bottom of the page or upon prompt when exiting the File Manager Page.