As I am looking at the speedgrader assignments, one feature that would be great would be that instead of per assignment, moving from student to student, but by student, moving from assignment to assignment. I am probably not the only one who has thought of a need to pick one student and then review their first assignment, second, third, etc. as teachers do that sometimes when they have to create a final grade. Right now, I have to back up each time to speedgrader to pick the next assignment and reopen speedgrader again.
