I have no idea on how any of the programming stuff works… But you guys sound like absolute wizards, so I’ll add my suggestion!
During descent, it’d be really cool to have a FPA (flight path angle) option. So select an altitude and then an angle.
The math is pretty easy. To convert FPA to vertical speed, multiply ground speed by tangent(desired flight angle).
For example, if you’re travelling at 500knots (ground speed) and you’d like a FPA of 3º, you multiply 500 by tan(3) you get 2,600. Therefore we descend at 2,600ft/min!