I have an assignment where the submission is optional that is worth points. However, I have my gradebook set so that a student gets an automatic zero after the deadline so when a student does not optionally submit they are given a zero. I manually change this but until I am able to do so I get flooded with emails from my students. It would be nice if in addition to 'submission', 'no submission' there were a 'submission optional' option. This would be beneficial on quizzes, assignments and discussion boards.