@CrystalAllen You may not have a "Copy this course" button depending on how your institution set a few of the permissions. For example, we do not allow our faculty to create courses so they can't copy a course either as that is essentially creating a new course.
You should still be able to copy a course through the import tool:
How do I copy content from another Canvas course u... - Instructure Community
You can also have just selected content import during this process:
How do I select specific content as part of a cour... - Instructure Community
Hope this helps!
-Nick
