Go to the "Edit" menu
From your LaunchPad home page, hover your cursor over the quiz you want to edit, click More Options, then click Edit.
Here you can edit the number of attempts, set a time limit, control question delivery, allow or disallow students to save and continue their work, and choose to scramble the order of questions and/or answer choices. If you make changes, click Save when you're done.
Note: If you set a time limit and check the box for Allow save and continue, the quiz timer will pause when students save their work. When they return, the timer will resume. If your goal is for students to take a quiz in one sitting for a set amount of time, enter the time limit and do not check the box for Allow save and continue.