You can create as many versions of a course as you like; however, the new version of the course that you are creating must not already be in circulation. It must be either archived or in a template state.

Please follow the instructions within these linked articles:

• MetaLearning 6.0 - Creating a Fusion course
• Fusion Course Creation- What are the different states of a course, from 'save' to 'finish'?
• How to archive a course that is in an active Campaign
• How to edit a published course
• How to change a course after it has been published