Three related things to note:
First, in the menu under each course see the "set schedule" option, where you can set a default schedule for everything you plan for that course. Setting this will preset the days when you do a repeating lesson.
Second, and more importantly, should you need to "bump" a lesson, it bumps using that schedule as a model. So a MWF course will move incomplete MWF lessons on a Wednesday to Friday, Friday to the following Monday and Monday to Wednesday, until a blank day is found. If you have not yet set
the course schedule, you can change it after the fact.
Finally, if you have what we call a "sequence" - where a numeric part of the description varies each lesson (Lesson 27, Lesson 28, ...), check my previous post on Lesson Sequences. It explains a way to format the lesson so that the repeating lesson becomes a sequence.
Thanks
jeff