How to create a custom quiz
Log into your account and navigate to your CDX home page. From the navigation on the left, click on the course that you would like to create a quiz in. Then, click the new Course Home button. On the next page, click the gear icon in the upper right hand corner. Then, select Turn Editing On.
Scroll to the bottom of the list of assignments and click the Add an Activity or Resource option. Select Quiz from the menu and click Add.
This will bring you to the page where you can create your quiz and adjust its settings.