SoapUI Project Parameters

There seems to be a bit of a discrepancy.  On page 59 it says "Note: that the SoapUI engine doesnGÇÖt currently support the passing of parameters to an automated SoapUI test script"  However, on page 61, it explains how to use parameters and says "Note that the plugin currently only supports GÇ£Project PropertiesGÇ¥ and not Global or System Properties."

If project properties are in fact supported, Can you explain how the naming works?  Creating parameter in SpiraTeam called login for example makes a parameter named "${login}".  So, in SoapUI, which name am I supposed to use when creating the parameter login or ${login}?

Thank You

 - Sarah