how to delete student tasks all at once

Hi,

If you want to delete the tasks of a single student you can go to the submissions tab in the group page and select the student in the Student dropdown and click on Search button. 

You will see all the submissions of the selected student, then you can click on "Select all" button and all the submissions of this page will be selected and once they are selected you can click on the "Delete" button.

We hope this way will speed up the process.

Kind regards.