If the param_relations.txt file is present in the library subdirectory from which the profile or element is retrieved, it is added to the part. If this file is not retrieved, the default param_relations.txt from the library is added instead.

The param_relations.txt file for screws, washers, and nuts is located in the library subdirectory: parts\ifx_fastener_data.

Configure the parameters and their contents in the default param_relations.txt file and in the profile or element-specific param_relations.txt in the various subdirectories.

It is also possible to add relations to the post regeneration area with the file param_relations_post_regen.txt.

You can specialize the relations file for a certain element by adding its name to the file. For example you can create the file i_beam_param_relations.txt in the parts\profiles\steel_beams_mm folder to make the relations file only apply to the i beam.