Macro To Add Points To a Circle at Quadrants?

I would love a simple way to just pick on a circle in a sketch and add points to all (4) quadrants. Basically I have been asked to go into all weldment profiles in our library that are pipe or round stock and add points to the quadrants in order to use them for Locate Profile.

I can't figure out how to do it as a recorded macro since it has no way to know the size of the circle.

Thanks all,

John

SolidworksApi macros