Yes! On CodeHS you can add, remove, reorder, and edit any CodeHS course, module, lesson, or exercise.
Once you create a section, you can "Add Assignments" to it from an existing CodeHS course or the Problem and Playlist Banks.
To start, navigate to the Assignments page and click on "Add Assignment."
Select where you want to pull modules/activities from (ex. Problem Bank, Course Catalog, Playlist Bank) and then search for the module/activities you want to add.
Click on Assign and select the section(s).
Note: You will see the newly added assignments at the bottom of your assignment list. With CodeHS Pro, you have the ability to reorder these assignments within your custom course.