Drill through Multiview selecting views through radio button, One radio button should be active at a time but it's not working like that, shall i add any extra css or script please suggest me.

 \koolreport\drilldown\MultiView::create(array(
                    "name" => "saleMultiView",
                    "dataSource" => $result_format2,
                    "title"=>$report_name,
                    "views" => array(
                        array(
                            "handler" => "<i class='fa fa-line-chart'></i>",
                            "widget" => array(BarChart::class, array(
                                "columns" => $columns1
                            ))
                        ),
                        array(
                            "handler" => "<i class='fa fa-bar-chart'></i>",
                            "widget" => array(ColumnChart::class, array(
                                 "columns" => $columns1
                            ))
                        ),
                        array(
                            "handler" => "<i class='fa fa-table'></i>",
                            "widget" => array(Table::class, array(
                                "columns" => $columns1,
                                "showFooter"=>"bottom",
                            ))
                        ),
                    ),
                 ));

Below is screen short all radio buttons are in active mode.