Hi there,
Thank you for contacting us.
The functionality that you described is not available in Highcharts by default. However, a simple core code modification makes it work.
Live demo:
https://jsfiddle.net/BlackLabel/L83hn1wd/
The only two pieces I've added are:
Code: Select all
if (item.linkedSeries[0]) {
item.linkedSeries[0].setState('hover')
}
&
Code: Select all
if (item.linkedSeries[0]) {
item.linkedSeries[0].setState()
}
Please let us know if you have any further questions.
Best regards!