opening 2 files, same name, different libraries in an RPG pgrogram

I've got a program that needs to open 2 files at the same time, same name,
different libraries.

I'd like touse an override before calling the program to point to the
proper files in the proper librarys, so I really only need to be able to
describe the same file structure twice in a program.  I'd prefer not to
have to create a logical over the file with the same keys just to get a
program to compile.

I thought maybe I could use extfile() keyword, but it appears that it
doesn't use this to get the file definition, and is only used to name the
file to the 'outside world'

other than creating a dummy logical, (or an empty copy of the original),
how can I do this with minimal muss and fuss?

thanks,

Rick