How to add master-data for my graph?

Question

JavaScript

I have a chart on which I display the data I need by day.
Here are the chart settings themselves:

this.chartOptions = {
        chart: {
          type: 'area',
        },
        title: {
          text: '',
        },
        xAxis: {
          categories: this.dates,
          tickmarkPlacement: 'on',
          title: {
            enabled: false,
          },
        },
        yAxis: {
          title: {
            text: '',
          },
          labels: {
            formatter() {
              return this.value;
            },
          },
        },
        tooltip: {
          split: true,
        },
        plotOptions: {
          area: {
            stacking: 'normal',
            lineColor: '#666666',
            lineWidth: 1,
            marker: {
              lineWidth: 1,
              lineColor: '#666666',
            },
          },
        },
        series: obj,
        responsive: {
          rules: [{
            condition: {
              maxWidth: 500,
            },
            chartOptions: {
              legend: {
                layout: 'horizontal',
                align: 'center',
                verticalAlign: 'bottom',
              },
            },
          }],
        },
      };

Here is the obj that is passed to series

[{
        id: '1',
        type: 'area',
        checked: true,
        name: 'Посты от пользователей',
        data: user_count,
        color: '#244363',
  }];

And the user_count array itself

[2, 0, 0, 0, 1, 1, 1, 0, 2, 1, 2, 1, 0, 3, 1, 1, 2, 1, 3, 1, 2, 0, 2, 1, 0, 1, 1, 1, 2, 7, 2]

I need to add a master-datail to the chart so that I can scale the chart like in the picture

. But I can’t figure out the highcharts api and nothing happens, can someone tell me how to do it in my case?