Stepped section cut lines?

[HellBent]

Hi all,
Is there a way to automatically create lines representing the step locations in the section view for a stepped section cut?....or do I have to draw them in manually? Doing it manually is easy if your transition is easily noticeable but when the step is done on a flat it's pretty hard to tell exactly where it is in the section view. I'm in NX3....

Thanks in advance....