Enable second row of boxes in timeline
In the timeline graph, if there is sufficient height in the graph, it would be great if the points that are hidden because overlap: false is set, that if there was space to render "two" (or more) rows of boxes (with longer connecting dots) that those boxes were rendered above/below the original boxes.
Thank you for reporting your idea.
Currently it is not possible to achieve using API options only, but here is the example which gives a user ability to enable second row of data labels, just by setting 'dataLabels.secondRow' equal to true. The second way of getting the expected result is to set a data label fixed y position.
Deon George commented