Pixar in a Box/ Computer Animation course layout and mastery

Hi,

I have two students taking this course, and all three of us find the layout of this particular course confusing. Also, at their coach/teacher, I can't seem to see how much of the overall course is completed (I believe I'm only seeing a unit in my teacher dashboard). The students also seem to be assigned lessons in different orders, based on how they access the course. Sorry these questions are so vague-- I facilitate a school district-run homeschool with all ages and subjects, and I definitely don't have time to take the course myself.