Originally Posted by JobHopper

There is no reason the FO (or the Captain) can't enter the numbers while the other pilot taxis, then switch while the other pilot verifies the entries. The FO is perfectly capable of taxiing any Delta aircraft straight ahead using rudder pedals while the Captain is heads down. It was a semi-routine practice on the -9. No reason to stop and tie up any ramp space, although I'm sure it will happen.