# 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.alignThresholds

When using multiple axes, align the thresholds. When this is true, other ticks will also be aligned.

Note that for line series and some other series types, the `threshold` option is set to `null` by default. This will in turn cause their y-axis to not have a threshold. In order to avoid that, set the series `threshold` to 0 or another number.

If `startOnTick` or `endOnTick` in the axis options are set to false, or if the axis is logarithmic, the threshold will not be aligned.