You don't need to do any configuration. ClassOnLive will automatically place the payment by card option on the purchase page of each of your courses.

If you have a ClassOnLive subdomain (myname.classonlive.com), the option to pay by PayPal is automatically added to your students.

If you choose to have ClassOnLive manage your payments, it works the same as the previous paragraph.

If you add your payment methods, the buttons for the payment methods you have enabled will appear automatically.

The design of the purchase page is the same for all courses, but it is automatically fed with the information you enter when filling out your course, for example if it is a membership, the price, etc. To see the purchase page of your course, you must go to created training and in the actions button select "view purchase page":

Click the buy button:

And it will take you to the purchase page:

You may be interested in:

Designing the purchase page

A student has purchased my training. How and when do I receive the money?

Placing my domain or subdomain