Cannot select IFC type

[Bread_Chan]

Halo all ,
I am working on IFC mapping for classification, but one classification cannot select the corresponding IFC type. May I know why and how to activate that button? Thank you all.

Operating system used: Windows 11

[Zoltan Vale · Accepted solution]

Hi @Bread_Chan ,

The disabled status shows that the specific type is not available in the current IFC schema. 
IfcFlowTerminal can be used in IFC2x3 but not in IFC4 according to the IFC standard:

IFC4 CHANGE  This entity has been deprecated for instantiation and will become ABSTRACT in a future release; new subtypes should now be used instead.

https://standards.buildingsmart.org/MVD/RELEASE/IFC4/ADD2_TC1/RV1_2/HTML/schema/ifcsharedbldgservice...