I’m glad you’re enjoying the Organizer. You could approach the multiple chapters in a few ways.
1. If you are going to allow them to read at their own pace, you can just check off as Finished as many chapters as they read each day.
2. If you want to assign a certain number of chapters, you could add a note beside that assignment and detail which chapters you want them to read.
3. You could enter the book as an Added Resource and, instead of putting chapter divisions, put Assignment as your division type. Then for Assignment 1, put “Chapters 1-3” in the division title field (or however many chapters you want them to read for each assignment).
Does that make sense?