Suggestion from a lecturer at Cambridge University (from our Spring feedback session)

When creating assignments, there is a textbox for "Assignment instructions", which the students can read. Would it be possible to
have another textbox, called "Assignment notes", where the instructor can type notes on the assignment that are useful for the instructor,
but should not be seen by the student. (e.g. for putting notes on who has been given an extension, jotting down the mark scheme, etc.)