How to add a marker at a specific point on plot?

May 16, 2016 at 2:26 PM
Edited May 16, 2016 at 2:27 PM
I'm using a Dynamic Data Display (v0.4) plot and I want add a circle marker at a specific data point of series to highlight the position of the maximum value of the line plot.

Taking into account the very small amount of documentation and examples provided by the developers of Dynamic Data Display, does anybody know how to add a marker at a specific point?