如何实现amchart的堆叠柱状图滚动

<div id="chartdiv"></div>

// 创建图表实例
var chart = am4core.create("chartdiv", am4charts.XYChart);

// 设置数据源
chart.dataSource.url = "data.json";

// 创建类别轴
var categoryAxis = chart.xAxes.push(new am4charts.CategoryAxis());
categoryAxis.dataFields.category = "category";
categoryAxis.renderer.grid.template.location = 0;

// 创建值轴
var valueAxis = chart.yAxes.push(new am4charts.ValueAxis());

// 创建堆叠柱状图系列
var series = chart.series.push(new am4charts.ColumnSeries());
series.dataFields.valueY = "value";
series.dataFields.categoryX = "category";
series.columns.template.tooltipText = "{categoryX}: [bold]{valueY}[/]";
series.columns.template.fillOpacity = .8;

// 添加滚动条
chart.scrollbarX = new am4core.Scrollbar();

// 配置图表外观
chart.paddingRight = 20;

// 加载数据
chart.dataSource.load();

// 渲染图表
chart.render();