# JS API Reference

# Welcome to the Highcharts JS Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

Feel free to search this API through the search bar or the navigation tree in the sidebar.

# plotOptions.venn.cluster.events.drillToCluster

Fires when the cluster point is clicked and `drillToCluster` is enabled. One parameter, `event`, is passed to the function. The default action is to zoom to the cluster points range. This can be prevented by calling `event.preventDefault()`.