I am by no means a real pilot, I just enjoy the hobby because I am into aircrafts! I like to keep things simple. I am having a hell of a time trying to figure out how to load a pre flight flightplan into the FMC via the "Send request" on the ROUTE page of the FMC. It takes me to a screen that says Corporate Routes and FS flght plans . Notice it says Import on the top of the FMC but it is not loading any of the flight plans that I placed into the Captain sim "routes" folder located in the main P3D directory! I am using the current version of the B757 but I am still on P3dv4.3 not yet ready to update until I see no issues with that upgrade! Any suggestion of how to get the FMC to load these flightplans. They are in pln. format and I have 2 that are in rte. format as I was testing to see if it would read either and it didnt!  :-/