unintuitive shortcuts/previous buttons
Currently the shortcuts are -> gives "next ungraded" and <- gives "previous ungraded". This means that if you grade someone, press "->" to go to the next student, realize you made a mistake and want to return by pressing "<-" this does not bring you back to the student you just graded. You can get back by an unknown number of "shift <-"'s, but this can be very inconvenient as it can be a large number of students to seek through.
For my workflow (grade someone, go to next ungraded, repeat) it would be best if "<-" was mapped to "go back to previously graded".
Edited by Yoshi van den Akker