You can moderate assessment settings for individual students in Quizzes.Next. Moderation settings include reopening assessment attempts and managing timer settings.
Reopening a student's assessment attempts will reopen a student's most recent attempt. Previously recorded responses will be retained and the assessment timer will resume from its remaining time from the previous submission
Timer settings apply to all course assessment attempts for the student. You can add a specific amount of minutes or hours to each attempt, multiply time limits by a set multiplier, or remove time limit requirements. Only one timer setting can be selected for each student.
Open Moderation Settings
Find the student you want to moderate . Then click the Moderate button .
To reopen the student's most recent assessment attempt, click the Reopen button.
Adjust Timer Settings
To adjust the timer settings for the student, click the Adjust Timer Settings checkbox.
Add Additional Time
To add additional time to all assessment attempts, click the Additional Time button . Then select the amount of time  and the unit of time . Time units can be set to minutes or hours.
Add Time Limit Multiplier
To add a time limit multiplier, click the Time Limit Multiplier button . Then enter the multiplier in the x timer limit field .