I guess I'm missing something somewhere but I downloaded the trial for version 9.2, the notes for which say, "Now also supporting .DWG Digital Signatures, STEP & IGES Import & Export." but I can't find those features. The version I downloaded says, "CMS IntelliCAD 9.2 Premium Edition x64".

Is this feature only available in the full version? I can export STL, but that appears to be it. If it's in another place other than Import & Export I can't find it. Have I got the wrong version? What am I missing?

STEP and IGES import & export features area available at the CMS IntelliCAD 9.2 Premium Edition Plus (PE Plus) version only.
Digital signature is available both at the PE or PE Plus versions.