How do I create an Assignment shell on the Assignments page?
You can create an Assignment shell on the Assignment page. Assignment shells are placeholders for the Assignment until you fill in the Assignment details.
Create an Assignment Shell
Click the plus icon in an Assignment group header  or the Add Assignment to link  to create an assignment shell.
Enter Assignment Shell Details
Enter the Assignment title in the first field , click the Calendar icon to select a due date  or manually enter a due date, and enter the number of points for the assignment in the points field . Set the Assignment type by selecting the type drop-down menu .
If you want to create the assignment shell and edit the details later, click the Update button . If you want to add the details now, click the More options button  to edit the assignment details.
Visit the Assignments chapter to learn about the different types of assignments you can create within Canvas.