Tinkering of a back end - A badge added to each biz home page

We have a developed a website which needs some tinkering in the back end. Currently people can create their own business profile page on line. They also get a second page where they can add their favourite businesses from our directory and receive update feeds from these favourites. We require a button to be added from their biz home pages to link to their feeds pages. Their are already 2300 pages which need this button and newly created pages should get this button too. We have the button designed already. It just needs putting in place.