IFC Model Structure - IfcZone

Would appreciate assistance with whether the IFC class IfcZone can be part of the heirarchy in a SketchUp model with a view to IFC export?

Many thanks

I guess it is possible, what tool do you use for creation of ifc attributes?

I’m using either the native SketchUp classification tool via Entity Info or the SketchUp IFC Manager extension

Is IfcZone nested in IfcBuildingStorey? Are IfcSpaces then nested within IfcZone?

Ifc Zone changed a bit from 2x3 to 4. IfcZone