6 demo BO, nevertheless I couldn't scroll down to bottom of the side menu to obtain the module. It's because by default the menu won't scroll, so you can't check out the links in the direction of the bottom. There's a free of charge module available to make the menu scrollable https://www.presta-addons-modules.com/en/front-office/prestashop-social-media-like-block-based-on-selected-categories-languages-pages.html