Sell ​​compound courses, learning path

Kind regards from Venezuela, the Caribbean, South America. I have the following requirement .. I would appreciate a lot if you could help me. I am clear about the concept of individual courses, and I have tried it, and it works for me. But, I have Diplomas made up of other individual courses, and Masters made up of Diplomas, it works similar to the learning path, and they must be created, offered, displayed and sold as an individual course, as a unit ... I don't see how I can do it , I only see individual courses ... I don't see how I can sell a compound course, that is, my Diplomas made up of courses and my Masters made up of Diplomas ... that is, what do I have to do to show my Diplomas and Masters, on the platform, simmilar to the courses, offer to the public and how are they sold? I look forward to your good advice .. thank you very much