I'm new to wix and I'm starting my first website. I am 65 years old and I have been a graphic designer for almost 30 years and I work on mac. so i work for print publication. This first site poses a problem that seems to have no solution with the automatic management of products in wix. let me explain. I am developing a site for a small publishing house of collections of contemporary poetry. It is a very small publisher, closer to a passionate association than to a real publisher; This means that there will be very few products on sale, or around fifty maximum. What I would like is that when you arrive on a product page, there is a link which refers to an extract from the book in pdf or epub format. This is where it does not work since apparently if I modify a product page with this button, all the other products will have the same link reference ...
What do you think is the best solution?
Here is a model of what I would like to achieve: https://lechantdesmuses.fr/guyot-violette/34-burkinabee.html
Thank you very much for your help, and take care of yourself during this difficult period of confinement.