CoursePress - Trouble setting it up for our needs

Hi There,

We are new to CoursePress and are having troubles setting it up.

What we want to achieve: We have courses with 5 to 10 unites each. Each unit shows a video. Once the video is watched, he or she should click the done button and jump to the next unit. There is no assessment. If a unit is passed by clicking done, the next unit is accessible. Once all unites are done he or she can get to the next course.

Problem: How do we have to set the course? At the moment all courses are accessible or nothing happens, once clicked on done.

We don't need to show all the course details. Is the only way to disable details with CSS disable:none?

Thanks for your support.