SHG (anonymous) Harry J deleted answer

I want to add credits to the Attribution page on my Boldgrid site, which I can access by clicking Special Thanks in the footer, using the Westview theme. Google has led me to plenty of info on REMOVING the Special Thanks link from the footer, but I don’t want to remove it, I want to edit the Attribution page which follows the link and add content to it. In Customizer, clicking the Edit icon next to the Attribution content tells me that I need to edit the page with the Page Editor. However, I  cannot find the Attributions page in my page editor. I can’t even find a file for the Attributions page in my /wp folder. Is it possible to edit this page? Would I have to upgrade my account?