Flight plan in msfs

[Ian]

@1085364

However, if I try and reset the departure point to a parking bay, it usually removes the route from the Garmin 530

Yes, When you change the departure point, MSFS recalculates the route in World Map. I imagine this affects the route in the Garmin 530.

See also Add ability to select gate - #5 by Ian

Cheers
Ian