updated In hope it helps others
I had the same issue with windows and whatever else required mitered casing. In the library browser in the User Catalog I created a folder using the street address and then under there i Began creating folders for doors , windows, walls and materials I created like birds eye maple or quarter sawn heavy flake red oak for panels.
I guess I am staring to use the program a bit better
Version: Home Designer Architectural 2021 (64 bit)