Public filter option for visitors

If our customer collecting his own reviews, it would be great if they could show all reviews with a filter option for his visitors. This would provide more transparency for the visitors and as I know, it´s a regulation in some countries, not to pick only good reviews. A widget with such filter on top and the possibility to quickly add a new review for visitors, would be cool. [https://app.gemoo.com/image/detail/537696222425481216](url)