Angel, Hi!, do you know when/if this will be implementated? I'm working a lot with Bond Bryan at the moment & this has become more of a problem for me. Generic models & MEP models just don't mix! All i can do is map IfcCovering to Ceilings which causes all IfcCoverings to be Ceilings, which floors is included in. Why do we have the option to sub-categories the IfcTypes if it has no effect on the import? Thanks Nick