# Welcome to the Highcharts Gantt JS (gantt) Options Reference

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

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# chart.events.addSeries

Fires when a series is added to the chart after load time, using the `addSeries` method. One parameter, `event`, is passed to the function, containing common event information. Through `event.options` you can access the series options that were passed to the `addSeries` method. Returning false prevents the series from being added.