You can use an override to change the dates, timing, number of allowed attempts for individual students or groups of students in quizzes or assignments. For example, if you have a student which requires extended time on a quiz or if a student requires an extension on an assignment.
setting up a User Override
1. Navigate to the Quiz and select More > Overrides from the Quiz Main Menu.
2. Select Add User Override.
3. Search for the student and fill out the override information.
4. Click Save or Save and enter another Override.