BytePro stores the locations of its data folders in the client computer registry at HKEY_CURRENT_USER\software\Byte Mortgage Software\datafolder<0 through 7>. The value (a string) is the network path to the shared data folder. Data folder0 is the default folder. The higher numbered folders are in the available folders list.
You can use your favorite registry edit tool in a logon script (or however you choose) to add the network data folder to the user's settings.