Can I give extra time to a quiz that is in progress?

You can give students extra time for quizzes ahead of the quiz being available (e.g. for students with reasonable adjustments), but you can also change the time limits for a user doing a quiz whilst the quiz is in progress.

In the same way as you would give a user override ahead of time, if you set up a user override whilst the quiz is in progress, the student's time limit will update on the next page load from Myplace.

This means that when the student moves to a new quiz page, or reaches the review page, the updated time limit will take effect.

For this reason it is good practice that your quizzes are appropriately paged, to both allow Myplace to save student answers regularly and also so any changes are picked up reguarly.