Go to the Assignments page
On your Courses
page, click the title of the section where you want to rename your labs.
Select "Rename" from the Gear menu
You can rename your labs and edit descriptions by selecting Rename
from the Gear
menu of the lab.
Enter new title/description and click "Save"
The original title of the lab will always be available to you as the title of the box when you click Rename
again. However, the original lab description, once edited, is not recoverable.