There are three different ways any single course can be used
1. Syndicating a course to the Marketplace
Get More Instructions on How to syndicate a course to the Marketplace?
2. Adding a syndicated/free course to a Campus
Get More Instructions on How to add a syndicated course to your campus?
3. Create a classroom around a course
Get more instructions on How to create a classroom
If you choose to take one course and assign it to different locations, you are really only digitally pointing the original course to different locations. Therefore, if you want to edit that course you can only edit the original course found under the course creator tab. Once the editing is complete, it must once again be published to your desired location.