# 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.

# plotOptions.xrange.tooltip.followPointer

Whether the tooltip should follow the mouse as it moves across columns, pie slices and other point types with an extent. By default it behaves this way for pie, polygon, map, sankey and wordcloud series by override in the `plotOptions` for those series types.

Does not apply if split is `true`.

For touch moves to behave the same way, followTouchMove must be `true` also.