Hi @JenniferKelly1 ,
As a Canvas Admin (not a Teacher), I have really always thought about the unlocking options as a choice, either do it by date, or use the prereqs. Your idea to use these in concert with each other does make sense to me, but I don't think Canvas is designed that way. If your modules have some kind of assignment/discussion/quiz in them, I'd recommend putting availability dates on those assignments, then using the prereqs to control module access. If one of the module requirements is to complete a quiz, and that quiz isn't available until date X, students couldn't fly through the course.
Do you think this might work for you?
-Chris