If the INS goes to IFA RDR when the knob is placed in IFA, there is no GPS available (or line of sight to the satellites is blocked), and the aircraft is attempting to perform an in-flight alignment.
You can create a custom cartridge profile with all your CMDS settings and load it in MP. The 'FILE' option at the top of the DTC menu is actually a button that will allow you to import a user-made profile.