To Create the File
1. Run an automatic import of your ECAD part list into an assembly. This creates a log file called ecad_hint.add, that includes entries for each part type in the part list.
2. Edit this file, if required, substituting values as necessary, and save it in the working directory as
3. If you have custom .prt files prepared for substitution, delete the automatically generated parts from the assembly and reimport the ECAD part file using the newly edited file.