# 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.

# series.xrange.selected

Whether to select the series initially. If `showCheckbox` is true, the checkbox next to the series name in the legend will be checked for a selected series.