Multi-class learning paths

How can I create multi-class learning paths in Open edX?

I will have too many classes to just show them all on the “explore courses” page. I’d rather show only the multi-class learning paths. But it’s not clear to me yet how to make a learning path / class that’s a class-of-classes.

Are these what are called “Programs”? And if so, is there no way to set them up without enabling e-commerce, and then e.g. making a free Program?