It is possible to move or merge any roster into any course by clicking on Section Manager on your Dashboard. You can move any section without grades or assignments into any other course with assignments.
You can use this tool if you want several sections of students to be in the same gradebook and course center. This will make the assignment of work and grading easier.
If you have already entered content, the Move and Merge buttons will be greyed out. You will not be able to move the section because content stays with the course center in which it was created. But if you are willing to reenter the content after the roster has been moved, you can contact School Loop Support and we can move the roster or rosters for you.