Hi  @ernasmith  Welcome to the Canvas Community.

Great question.

Sections are a nifty tool. I found these instructions from University of Oklahoma | Canvas - Combining Sections into One Can... 

Combining courses in Canvas

1. Navigate to the main lecture/lab course and copy the course ID number, which is the last number in the URL for the course, i.e. https://canvas.ou.edu/courses/6199 (6199 is the course ID number).
2. Go to the course section you would like to combine with the main course. Click Settings on the bottom left side.
3. Select the Sections tab.
4. Under Course Sections, click on the name of the section.
5. Click Cross-List this Section on the right side of the screen. Paste the course ID number from step 1 in the box next to ‘Or Enter the Course’s ID:’. Under Selected Course, verify that the main course title has populated.
6. Click Cross-List This Section.
7. Repeat steps 2-6 for each additional section.
8. When you go into the main course and click on Sections (under Settings), you should see the sections that were combined.

I like the way they broke the instructions down. Does that work for you?