Hello,
Welcome to our forum and thanks for contacting us with your question!
Of course it's possible to render multi-line categories. In order to do so, you should define it in
yAxis.categories array with HTML markup and link your data to desired category by setting
y value of a task. By default, HTML markup is parsed and rendered as SVG text, but if you want to achieve more advanced output, you can enable it in
yAxis.labels.useHTML property.
Demo: https://jsfiddle.net/BlackLabel/10d7jb83/
References:
https://www.highcharts.com/docs/chart-c ... formatting
https://api.highcharts.com/gantt/yAxis.categories
https://api.highcharts.com/gantt/series.gantt.data.y
https://api.highcharts.com/gantt/yAxis.labels.useHTML
Let me know if that was what you were looking for.
Best regards!