Easy Chart Symbol axis

Hi,

I am trying to plot the a simple wind direction using the symbol axis in the easy chart.
Replacing 0-360 with N,S,E,W, obviously with a 90 space between them., but able to change where each grid/space starts.
Is there a way to define where/space the grid lines are on the axis. It seems they are 1 by default and I cant edit them.

Thanks,
Cam