Mapping IFC and AECOsim Fields

I'm trying to get robust IFC exports set up. When I look at the IFC EXport > Mapping Options > Map > Property Mapping, I see the attached table. I can't seem to add or change any settings (other than clearing existing entries). Is this just our setup or is this how its supposed to look?

I thought that standard properties had been defined in the IFC format - i.e. for a Column: Name, Length, Net Volume, Surface Area, etc...

I therefore expected to find all, or at least some, of these AECOsim fileds would be mapped to relevent IFC fields? It appears none of this work has been completed - this may explain why my data seems to be such a mess in the exported IFC files (apart from the two fields listed, which are very relaible!)

Am I missing something obvious? How do the properties get mapped, why are standard properties not already mapped to IFC fields?

Has anyone ever created an IFC which they are satisfied with? If so I'd be most interested to see the DGN, IFC and any settings used. So far I can't say I've seen an IFC export with a data structure that satisfactorily replicates the AECOsim schema. It looks to me like its just a question of correctly mapping the information, but perhaps I've missed something!

Mark

ABD SS4 v08.11.09.622

ANZ Dataset