Quiz manual grading page should warn if you try to leave with unsaved data

The Quiz manual grading page does not protect the graders against a possible exit or refresh of the page: in this type of situation they lose all the corrections made. There is no confirmation message, or an automatic saving function when they are about to change page (by mistake or not).

When graders have over a hundred answers to mark, they want to be able to easily save their notes and comments.

The position of the "Save and go to next page" button in the page (completely at the bottom) and the behavior (Save and go to next page) of this function makes a frequent saving strategy difficult.

Adding a "Save changes" button under each answer or at least at the bottom of the page could help easily save the work and continue on the same page.