Change default directory-registry hack?

Looking for a way to change default “save” directory for Mavis Beacon Teaches Typing Deluxe, version 11. It would be very helpful if I could save student records to a network folder rather than the current default, which is a folder on individual PC hard drives. (I’m working in a community college learning center/computer lab). I can “navigate” to the network directory, of course, but that’s too labor-intensive, even if I were here all day every day. Any suggestions? I’m guessing this will require a registry hack, or is there another way?