Ica,
One possible solution is to use "Thematic Resymbolization" in the "Map Manager" for the layer, defining distinct classes for each of the unique property values.
Regards,
Jeff Bielefeld [Bentley]
...using "Named Criteria" in the "Bentley Geospatial Administrator" is currently the only way to have the "Map Manager" layer classes not display the underlying criteria expression.
Regards,
Jeff Bielefeld [Bentley]