The SCMO expects a resource to be scheduled at least once a week.
If you want a book on certain dates, you can schedule each division individually, with a start date of that date. This doesn’t have the flexibility you might want, but certainly works…
As I’m doing AO, and books are often scheduled sporadically – now that we can create a copy of a resource, I copy the book – then add in the AO week number in with the chapter name. As I know what AO week we are currently on, I can quickly “close” (so it doesn’t show up) the books that are for a different week.
hope that helps!