Lorenzo Moriconi

Hi everyone, i'd like to standardize my ifc file with the purpose of eliminating some standard Revit parameters and entities. I would like to create an ifc file structured as follows: IfcProject IfcSite IfcElement (IfcSlab, IfcWall etc.) Each entity must contain only the group of identity parameters as default parameters. Then, by creating schedules, I will introduce custom psets on each object . How can i do that? Please find attached an example image , which explains what I would like to achieve...