How to fire zoom on button click?

[kentforth]

I have Line Chart. There are plus and minus buttons that can increase or descrease chart.

I want to have same functionality on my custom buttons;

If I run method increaseZoom() that chart should be zoomed in and I f I run method descreaseZoom() that chart should be zoomed out

How can I do it?

chartOptions: {
chart: {      
        zoom: {
          enabled: true,
          type: 'x'
        }
      }
}

[rolandgvc]

Any updates on this?