Been looking through various threads as I seem to recall there were a number asking this - but I didn't find the answer. Sorry if I am repeating an old question for the umpteenth time (which I am sure I must be!).
Apart from going to the SID/STAR page and closing runways globally (or setting them up for Landing or Arrival only), how to ensure that ATC sends you to the destination runway for which you have already carefully set up a STAR approach (on the flight planner and in the aircraft FMC)? For now, I just ask for the runway I want if I am given the 'wrong one' when ATC ascribes it to me as I near the airport. Was there a better way in PF3? This would be nearer to real-world planning.
Similarly, can one do the same for the departure runway? ATC doesn't tell you which you'll be using until you ask for taxi clearance. Is that the moment (when you ask to taxi) at which PF3 makes the decision, or, if PF3 decides on the departure runway at an earlier stage, would there be some way to know at that time which runway has been chosen? Again, that'd be more 'realistic' than asking for runway changes every other time and ensure that the SIDs/STARs selected would not turn out to be for different runways than will finally be used.
Or maybe I am over-complicating things somehow??
Thanks!