Profile from 3D Line

I want to be able to create a a 2D Profile with station/elevation from a simple 3D line.  I have been trying to follow along on all sorts of work flows I have been finding, but with no luck.  Most involve a surface and I am not dealing with any surfaces.  I have been able to open the profile model and view the profile I am describing, but not able to go any further than viewing it.

Thank you for any help.  I am newer to the Microstation workflows.  I have always worked with AutoCAD based programs for survey and design.