Yeah this would be really helpful, I have checked forums far and wide for configurations on the PMDG 747 and I can't find any! I'd be happy to set them up myself (which is what I have resorted to) but I'd prefer the realistic ones out there, like offered by AOA for the 737.
Getting the same issue down my end. (EGLL) AS2012 offline mode has been enabled though. Good enough for now I guess, but I'm guessing from the replies above this is becoming a common issue?