Kibana 6.1 introduced an experimental visualization type called Controls, which allows users to add interactive inputs like drop-downs and range sliders to dashboards, enhancing data interactivity and customization. The blog post provides a step-by-step guide on using these features, starting with setting up the Elastic Stack using a dataset from France and creating a new index pattern in Kibana. Users can create drop-downs for filtering by region, populated through a terms aggregation, and range sliders for filtering by net salary, based on min and max aggregations. Additionally, Kibana 6.3 allows chaining of drop-down inputs, enabling selections in one input to filter options in another, demonstrated by linking region and town filters. The post also suggests combining these controls with other visualizations in dashboards for more dynamic data exploration and encourages users to provide feedback on the experimental feature to shape its future development.