Instructions for graphical flight plan editing on the GTN:
1. On the Map, touch the Map to activate the Map Pointer and enter the Graphically Edit Flight Plan Mode.
2. Touch the Graphically Edit FPL key.
3. Touch and hold the leg of the flight plan you wish to edit.
4. Drag it to a new waypoint and release your finger.
5. Touch the Done key.
Detailed instructions can also be found in the Pilots’ Guide on page 9-29.