Hey ... i actually dont know where i get the correct airways and waypoints for the fmc ... i tried a lot in the internet .. but my fmc always says not correct or does not exist .. i fly with the pmdg 747 400 by the way. i wanna fly from EDDM to LOWS can anybody please help me as soon as possible ... maybe with an discription how to enter the correct waypoints in the fmc and where i can get them.... maybe you can explain how to do IFR with FMC too ... THANKS and much love and peace alex

First I would post any inquires at the pmdg forum. Its a few down from this one. Second, this is a very complex simulation, you can't hop in it and fly like default MSFS aircraft, you need to spend time reading the manual.

follow the walk-through in the manual, everything you need to know is in there