ORD - Show existing pavement in XS

This seems like this should be simple, but I can't figure it out.  In GEOPAK SS2 is use Roadway Designer to model the proposed design, and I actually used an old criteria file that used the Draw Trace command to show existing pavement 3" below the existing ground between existing EOP elements found in a separate dgn.

How can I do this in ORD?