The Turnitin libraries page is separated into four pages accessible by using the appropriate tab. The initial page is the Assignments library.
When the library page is opened, the assignment library displays the assignment set for the current class by default. To select a different class assignment set to view, use the drop-down menu labeled assignment set and choose the name of a class. The assignment set for the selected class will be displayed. You can now import the assignments from this set into another.