Line Chart - dynamic markers

I have a table with 50k rows of coodinates based on depth (y), and time(x).   That same table has a 3rd column that indicates if that specific coordinate pair is a special indicated point on the line.   In excel custom line markers can be added via the series function.   I'm new to spotfire, so please tell me if I can add logic to add line markers on those specific indicated coordinate points, and if so, how do I do it? 

Thank you 

Kasey Marrs

(1) Answer