You can export the S-parameters of your net and analyze the behavior in the frequency domain. If you have HyperLynx 8.2, you can use the Touchstone Viewer to make an impedance profile of the S-parameters.
Another option is it assign the TDR model to the IC buffer symbol in your schematic (or IC pin in BoardSim) and run the time-domain simulation. This model is a basic 1V, 10ps edge with very low output impedance so it acts like a real TDR.
tdr.ibs.zip 1.7 KB