# 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.

# exporting.buttons.contextButton.titleKey

The key to a lang option setting that is used for the button's title tooltip. When the key is `contextButtonTitle`, it refers to lang.contextButtonTitle that defaults to "Chart context menu".