addTo(String arrayName, Object options [, Number index = array.length [,Boolean updateStockChart = true]])

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.

• StockChart should be rendered before you can use addTo method.
• StockChart re-renders automatically after addTo method. It is recommended to disable the auto update by setting updateStockChart to false till the last step if you have multiple properties. Otherwise the performance might be affected because of rendering StockChart repeatedly.

var stockChart = new CanvasJS.StockChart("container",
{
 .
 .
 navigator: {
   data: [{
     .
     .
     dataPoints: dataPoints1,
     .
     .
   }]
 }
 .
 . 
});
stockChart.render();

stockChart.navigator.addTo("data", { type: "line", dataPoints: dataPoints2 });