How do I edit or delete student discussion replies in a course?
As an instructor, you have the ability to edit or delete discussion replies within your course. This setting helps you moderate your course and remove any inappropriate or otherwise unwanted posts.
You can also choose to view or hide all deleted replies in a discussion. By default, deleted replies are hidden in a discussion.
If the steps in this lesson do not match what is displayed in your course, learn how to edit or delete discussion replies in the Discussions Redesign interface.
Edit Discussion Reply

Locate the student reply you want to edit and click the Options menu [1]. Then select the Edit option [2].
Delete Reply
To delete a student reply, click the reply Options icon [1], then select the Delete option [2].
Show Deleted Replies

To view details for all deleted replies in the discussion, click the Show button.
Deleted discussion replies display the name of the user who deleted the reply as well as the date and time the reply was deleted [1].
If a discussion reply with a threaded response is deleted, the Deleted notification always displays and is not hidden from view [2].