Scenario: I'm using the plugin as an internal company's LMS, i.e. there is no purchase option, students for each course are assigned.

Problem: Since all courses don't have a price (showing as FREE) students are able to choose courses from the related courses section and enroll themselves.

Suggested solution: Course general settings should have a checkbox, if checked, the course enrollment is manual by administrator ONLY. All price details (such as FREE) is then hidden.