6 demo BO, however I could not scroll right down to base of the facet menu to access the module. This is because by default the menu isn't going to scroll, so you can't look at the hyperlinks toward The underside. There is a free module available to make the menu https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html