Implement the Knowledge Advanced Widgets
Your B2C Service instance includes Knowledge widgets. They enable users to access knowledge features, including content type subscription, suggested searches, filter search by product and category, and search result facets.
You can implement widgets and configure them to tailor knowledge for your organization and users. You configure widgets by adding or editing the widget attributes on the pages in your existing instance. You can see the list of knowledge widgets by reading the documentation on Customer Portal administration page: https://<your_site>/ci/admin/docs/widgets/standard/okcs