Magic Lesson Import

I tried to add a lesson to a course I started with AI, but when I tried to add a lesson by returning to the AI Outline, it wanted me to lose all the work I had already done editing the initial draft. 

 

I then tried to use the Magic Lesson Import but the format of the lesson was totally different than the previous lessons. Is there no way to add an additional lesson and follow the same format (blocks) with the AI assistant?