Quiz

I am also looking for an option to export not only the students' answers and grades of a quiz question but also my feedback/comment on it for reporting results of an exam quiz to participating students. But I do not find such an option in the export result section of a quiz. Would our local moodle administrator be able to add this? How?
To add a wish: Would it be possible to have the selected sections of their quiz to be mailed to the individual students when I finished grading?

Thanks in advance for help!
Best regards
Markus
Markus