Copy and Pasting slides

Thanks for the lesson! It appears that the destination lesson must have at least one slide in it. As I was creating a course, I noticed that my lesson was too long and wanted to split it up. I tried to create a new lesson with no content and copy the last several slides from the previous lesson. I had to insert a blank slide first in order to past, then delete the blank. Another option was to copy the entire lesson a second time, then delete the slides that I wanted to keep in Lesson 1. Hope this helps!