I’m not too sure I understand the question…
If you are in Module 3, you’re only supposed to be doing the calisthenics for the mixolydian.(anything additional is up to you, if you have the time and already know the other scales and corresponding fingerings)
If you download the assignment sheet from the PDF Downloads for Module 3, it is very explicit as to what pages in each book to work on, and in what order for the current lesson module.