Minimums in Subsection Prerequisite s

The below documentation, #9, says,

" If the prerequisite section is not a problem set, set Minimum Score to 0 and set Minimum Completion Percentage to a value greater than zero."

Does this mean, I can not use Minimum Completion Percentage for a problem based prerequisite subsection?

If so, how the completion of a non problem based prerequisite(say, a video) is determined?

But my requirement is that I have a problem set, irrespective of how much the marks are scored, I just need to ensure that all the problems are answered. Then based on the ‘completion’ I have to allow the next subsection. How to achieve this?