Adds a new element of given type to the specified array in navigator. For example, it can be used to add a new dataSeries to data array of navigator.
Parameters:var stockChart = new CanvasJS.StockChart("container",
{
 .
 .
 navigator: {
   data: [{
     .
     .
     dataPoints: dataPoints1,
     .
     .
   }]
 }
 .
 . 
});
stockChart.render();
stockChart.navigator.addTo("data", { type: "line", dataPoints: dataPoints2 });