# 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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# plotOptions.series.marker.enabledThreshold

The threshold for how dense the point markers should be before they are hidden, given that `enabled` is not defined. The number indicates the horizontal distance between the two closest points in the series, as multiples of the `marker.radius`. In other words, the default value of 2 means points are hidden if overlapping horizontally.