You can customize the /account/favorites page by doing the following:

1. Login to the PeopleVine Control Panel
2. Go to Engage > Content > New Page
3. Setup your new page as Page Type Content Snippet
   
   
   
4. Set the marketing keyword to account_favorite or you can place content at the bottom with account_favorite_bottom
   
   

Once this page is created, you can continue to edit it by going to Engage > Content > Pages and search for account_favorite.