AC21 - GO and IFC properties

[alemanda]

Is there any way to set a GO using IFC properties?
if not, is there any way to translate IFC properties into ac properties?

[Laszlo Nagy]

In the Graphic Override Rules Dialog I do not see any criteria or field that would allow the use of IFC Properties.
I think on the long run GRAPHISOFT want users to use only Element Properties and not create custom IFC Properties. If they solve mapping stuff to Element Properties - like it could be done in case of IFC Properties - then Element Properties can fully replace IFC PRoperties in my opinion. But at this moment this capability is not present in ARCHICAD.