The Mute function has been replaced by the Grade Posting Policy in the new Gradebook. In the past, when I Muted an assignment, it was my understanding that *everything* was hidden from the student--grades, feedback written directly on the assignment in SpeedGrader, as well as comments and uploaded files in the sidebar. Changing the Grade Posting Policy to Manual only hides the grades, while feedback, comments, etc. remain visible.
I don't want to release feedback until I can do so for everyone in the class. How can I hide *everything*, as I thought I used to with the Mute function?