I need to work on a customer backup from a Legend R2 before converting to a Magix R3. I've read about surrogate mode with WinSPM, but I do not find instructions anywhere on how to utilize. I understand that I need to have a carrier/processor, as well as direct connection, which I have. So I have the backup file and all the hardware necessary, what do I need to do to program this file in "surrogate mode?