3. Fill in the assignment details and input available and due dates. Once complete, click "Save and add lessons".
6. Use the arrows to look at specific course versions, sections, and lessons. Use the check boxes to select content.
If you don't want to include the entire section in your assignment, you can click the arrow next to a section name to view all of its lessons. You can then check the boxes next to individual lessons to include them in your assignment selectively.
Checking the box next to a version will include all of the course's lessons in a single group assignment. Given the amount of content that would include, this is typically not recommended.