# Welcome to the Highcharts Maps JS (highmaps) 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.heatmap.data.dragDrop.draggableY

Enable dragging in the Y dimension. Note that this is not supported for TreeGrid axes (the default axis type in Gantt charts).