You may want to create completely separate course options for each of your courses, but if you had two courses with the same prices and the same opening hours, you can just re-use the course options.
Going to Settings > Courses will show you a panel like the one ro the right for each of your courses.

1. Here you can specify whether the course is bookable online. Turning this off will prevent any customers from booking themselves in.
2. This setting will allow or prevent customers from self-canceling their sessions. Modify this to suit your business needs.
3. This image will replace the default banner image on the customer booking page when this course is selected. If you need new images added to this list please reach out to support. We can give you some guidance on the image size and aspect ratio.
4. Most importantly, here is where you actually assign the Course Options. There will have to be at least one set up for your course to be bookable by staff or customers.
5. Here we can manage simple time restrictions on the course. This will create periods of time that customer cannot book, but when staff still can.