If your courses ARE linked, read this:
Linked classes. If you're teaching the same class to multiple sections/periods, you may be using linked classes on Schoology. Be aware that if you're viewing your students in Edpuzzle, they will all appear in one large class rather than separate linked classes. Another side effect is that you should NOT use the drop down menu in Schoology to click on your different sections, since all the students will appear in the same class (the first section listed). If you accidentally use the drop down menu and click on another section, this will create a new class, which you'll need to delete by selecting "Class options" and "Delete class" or by going to Edpuzzle and deleting the section with no assignments.
If your courses are NOT linked:
DO NOT copy to course. You must add EdPuzzle to each course separately.