Do you want to delete all occurrences of the recurring appointment "Release for PTC at 2:15 (Wed-3-6; Thurs 2:30-5:00 https://docs.google.com/forms/d/e/1FAIpQLSfPG_RC8HWTnzzIXFwSC4HyQZOkvjPSxBDg4JUcQ7-0gZ5f2w/viewform", or just this one? Delete this occurrence. Delete this series.