Reply from earlier ticket(old support):
Adding new course category "tutorial" and load the customize template only in courses that belongs to the course-category "Tutorial" is possible.
For this you need to create a template same as single-course.php with some other name single-course-tutorial.php that contains your customization.
In this you can add a action on filter "template_redirect" and on this filter run your custom function.
In custom function , get the course id and then fetch the course category associated with the course id . if the course category is the category "tutorial" then load_template('add path of your custom template") or use wp_redirect("add link here");
By doing this when the course template loads it first checks if the course category is tutorial then it will redirect to the custom template .
Let us know if this clarifies.
Hope this helps.