Click the Manage button of your desired course and then click the Instructor Tools button of your desired section.
Click the Assessments tab located on your dashboard and click the Create new assessment button next to the search box. Provide Name, Feedback, Duration, and settings required for the assessment.
To add items of your choice, select the My Selection option from drop-down, click the List view button and select the desired lesson from the Lessons drop-down.
To select the items from Attempted, Unattempted, Bookmarks, Correct, Incorrect, and Notes list of items, click the Your Action drop-down and select the desired option.
If you want to add items from a specific lab, exercise, test set, quiz, or assessment; click the respective button. To add items of a particular item type, click the All Type drop-down and select the desired item type. Click on the items you want to add, to deselect any item click one more time on that item.