Hello, I think I'm trying to do the same thing but a little complex. I want to automatic the process of creating the PropertySet text file with a user interface. To avoid typing errors and make it much easier for Revit user. I want to create the property set with this format. # User Defined PropertySet Definition File # # Format: # PropertySet: <Pset Name> I[nstance]/T[ype] <element list separated by ',' [IfcClass]> # <Property Name 1> <Data type> <[opt] Revit parameter name, if different from IFC>...