How to change quiz settings
First, log in to your CDX account and navigate to the desired course. In the upper right corner of the course page, click the Actions button and click Turn editing on.
Click the Edit option next to the quiz you want to edit. Then, click Edit Settings. This will bring you to the settings page for the quiz.
To change a setting, you first need to enable it for editing by clicking the Enable checkbox to the right of the setting.
When you’re finished making changes to each desired setting, click Save and return to course to save your changes or Save and Display to preview the quiz and make additional changes.