As of version 2021.f, "Open BIM Quantities" can read complex properties and quantities. In the IFC standard, complex properties ("IfcComplexProperty") allow users to define a subset of properties as a single "property" entry within a set of properties associated with an element of the BIM model. This function is the same for physical complex quantities ("IfcPhysicalComplexQuantity").
Complex properties and quantities are displayed in the list of parameters associated with the BIM model component in the following format:
[Property reference/complex quantity]. [Property reference/simple quantity]
Complex properties and quantities can be used in the rules of measurement for selecting BIM model elements and defining the generated items.
