I completed the first version of my Drupal web site many months ago. Back then, I added a donation module with authorize.net. I have no idea how I did that but somehow I did it without adding a "content" page.
Users on my web site said they wanted a paypal option to donate. Without remembering how I added a module before, I added a blank content page and linked it to a new menu option on my main menu.
Then I downloaded a paypal module I liked (https://www.drupal.org/project/paypal...). and I added it to my modules and added he dependent modules, etc.
So, now I have it. How do I use it? When I look at the modules at my paypal module, the only option I can click on is "permissions". When I go to the empty contact page I created, I do not see how I can stick the module in to the page. And, incidentally, for the Authorize.net module, I think I did not have to make a contact page at all.