Instructors should be able to export comments from any Arc video, in a printable format, including the name of the class, name of the assignment (if applicable), date of export, each comment marked with the time stamp and who made the comment.
For our certification courses, we must document the coaching that our participants receive. When we were using a different video coaching tool, we were able to export the comments made along the video's timeline, and that was sufficient. With Arc, our instructors are having to comment on the video submissions for the students' benefit, and then write a separate report for certification documentation.
Students should also be able to export comments made on their video submissions, or on videos posted by the instructor for class commenting, for reference when not logged into Canvas.