MOS3JOKER:
The way to change the default setting of a library part is to open the part (
Open Object...), click on the Parameters tab, change the Value of the parameter, then Save the library part. These parts will get overwritten when Graphisoft updates the library, so the parts need to be saved to another folder, or the process repeated when the library is upgraded. Another approach is to use Favorites with the preferred settings.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David