How do I mark discussion replies as read or unread in Discussion Redesign as a student?
By default, as you read new Discussion posts, Canvas will mark them as read as you scroll down the page. However, you can manually mark each posts back to a read or unread state.
You can tell Canvas not to automatically mark all your posts as read in your Discussion settings.
Note: Once a post's state is manually changed, the post will not change states (become read or unread) until you manually change it again.
View Posts

The unread icon indicates a reply is new or unread [1]. After you view a discussion reply, the unread icon no longer displays [2].
Mark Post as Unread

To change a read post to unread, click the Options icon [1], then select the Mark as Unread option [2].