Inserting An Along Track Offset Waypoint Into The Flight Plan:
Navigate to the flight plan application
on the MFW, if required create a flight plan.
Touch the waypoint identifier button to open the 'Waypoint Options' window.
Touch the More Options Button.
Touch the Track Offset Button.
On the 'Along Track Waypoint Offset' numeric keypad select a direction (Before ( - ) or After ( + )).
Enter a number between 1 and 999. If the track btween the waypoints is less than 999
the distance entered is restricted to the total distance between the two waypoints.