Storing location for a preferences file in a standalone stack?

[Dr. Hawkins]

I'm not ready to face the differences in where things go with mac &
windows, and dealing with the OS preferences settings.

Is there a way that I can store and change a string in a standalone
stack to find the preferences file, where I can then stuff the rest?

Should this, perhaps, be a custom property?

-- 
Richard E. Hawkins, Esq.
(702) 508-8462