FusionCharts - Vertical Zero Plane in charts with numeric x-axis

Showing only specific data values of a chart

HTML

<script src="https://static.fusioncharts.com/code/latest/fusioncharts.js"></script>
<script src="https://static.fusioncharts.com/code/latest/fusioncharts.charts.js"></script>
<script src="https://static.fusioncharts.com/code/latest/themes/fusioncharts.theme.fint.js"></script>
<div id="chart-container">
  FusionCharts will render here</div>

JavaScript

FusionCharts.ready(function() {
  var profitChart = new FusionCharts({
    type: 'scatter',
    renderAt: 'chart-container',
    id: 'myChart',
    width: '500',
    height: '350',
    dataFormat: 'json',
    dataSource: {
      "chart": {
        "caption": "Old Stock Clearance",
        "subcaption": "Price Vs Profit",
        "yaxisname": "Price (In USD)",
        "xaxisname": "Profit (In %)",

        "yaxismaxvalue": "1000",
        "xnumbersuffix": "%",
        "ynumberprefix": "$",

        //attributes used to define x-axis limits
        "xaxismaxvalue": "40",
        "xaxisminvalue": "-20",

        //Theme
        "theme": "fint"
      },
      "dataset": [{
        "drawline": "0",
        "seriesname": "Televisions",
        "color": "#6baa01",
        "anchorsides": "3",
        "anchorradius": "4",
        "anchorbgcolor": "#6baa01",
        "anchorbordercolor": "#6baa01",
        "data": [{
          "id": "TV_1",
          "x": "-9.89",
          "y": "642"
        }, {
          "id": "TV_2",
          "x": "21.59",
          "y": "947"
        }, {
          "id": "TV_3",
          "x": "-8.8",
          "y": "433"
        }, {
          "id": "TV_4",
          "x": "-10.88",
          "y": "750"
        }, {
          "id": "TV_5",
          "x": "5.43",
          "y": "593"
        }, {
          "id": "TV_6",
          "x": "23.76",
          "y": "426"
        }, {
          "id": "TV_7",
          "x": "17.74",
          "y": "575"
        }, {
          "id": "TV_8",
          "x": "8.71",
          "y": "962"
        }, {
          "id": "TV_9",
          "x": "-1.56",
          "y": "205"
        }, {
          "id": "TV_10",
          "x": "16.42",
          "y": "937"
        }, {
          "id": "TV_11",
          "x": "10.42",
          "y": "689"
        }, {
          "id": "TV_12",
          "x": "-1.19",
          "y": "425"
        }, {
          "id": "TV_13",
          "x": "-12.58",
          "y": "804"
        }, {
        ...