# Welcome to the Highcharts Gantt JS (gantt) 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.

# chart.zooming.mouseWheel

The mouse wheel zoom is a feature included in Highcharts Stock, but is also available for Highcharts Core as a module. Zooming with the mouse wheel is enabled by default in Highcharts Stock. In Highcharts Core it is enabled if chart.zooming.type is set. It can be disabled by setting this option to `false`.