What is the difference between course and stream?
A course is a template that consists of a course description and lessons that contain all materials in the form of text, photos and videos.
A stream is an instance of a course that has unique settings, for example, a stream launched from a course can be either individual or group. Each stream has its own unique link and code. It is possible to have several courses running simultaneously from the same course with different schedules. To visit the stream users need to sign up.