Function
The card invites the learner to join until they enroll, then says they are
enrolled and offers Go to my progress, the way back to the course's
progress board; the action itself is CourseEnrollAction. The pace picker
offers 10, 20, 30 and 45 minutes a day, starts on 20, and turns the course's
runtime into weeks with studyPace. The choice is local to the page: it is
an estimate, not a setting.
The course page's enroll card: the action, how big the course is, and how long it takes at the learner's pace.