@intjmastermind I agree with @Marionettework and @AvApollo. The avionics in the Starship are coded the way the plane is and currently flown IRL. It is technically still possible to fly it IFR utilizing RNAV as the primary Nav Source. the VNAV page can be utilized to help achieve the correct rate of climb or descent needed to avoid having to level off for an altitude restriction. Also manually keying in fix-by-fix waypoints for SIDS and STARs is how it's done on the GNS 430/530 and many other common GPS units commercially today. Though IRL turboprops and smaller aircraft usually don't fly on the same procedures as larger airliners at all and are commonly vectored in (*depends on the airport). I usually only ever file direct IFR in real life unless it's a longer route or a Mandatory/Preferred IFR Route in the flight supplement exists. *Note: Simbrief works best when used for airliners and will consistently provide you with a SID or STAR meant for turbojet aircraft only (Not turboprop). Sometimes turboprop SIDs and STARs exist, so it's best to look up the available procedures before starting the flight (if you're trying to be realistic). If none exist, then expect to be vectored and if planning to stay IFR, brief yourself on the minimum IFR altitudes to be sure of adequate terrain clearance.