Is using a pilot i.d. to load flight plan on MCDU (e.g. MCDU on WT CJ4) realistic?

Does the pilot i.d. prompt to load a flight plan on the WT CJ4 actually exist? Currently you can load your plan created in SimBrief to the MCDU using this option. Does this work loading ForeFlight plans on a real world MCDU (FMC)? I don’t want to use it often if it’s not realistic. Maybe only to save time if I’m limited on my guilt -free gaming time. For all I know comparing SimBrief to ForeFlight may be like comparing apples to oranges. Or do real world pilots actually carry on the printout of the flight plan from ForeFlight (or some other source) to program the MCDU (or FMC) manually?