The Catalog Properties are where the global defaults for door construction etc. are set.
These defaults can be overridden by Drawing Properties for individual jobs, which in turn can be overridden by Door Properties.
Starter catalogs are included in the installation (...qim). Any changes will only come into effect upon opening a NEW drawing.
ALL new users can and should set up your company details and other global setup defaults before you start using DoorMaster.
Your Catalog can be accessed from the...

or

Catalog property sheets are displayed with a pink background to distinguish it from Drawing [F4] properties which display with a light grey background.