Garmin G3X Touch Pilot's Manual page 198

Flight Planning
5) Enter the waypoint using the keypad.
Or:
Touch Find > Recent Tab.
Or:
Touch Find > Nearest Airports Tab.
Or:
Touch Find > Flight Plan Tab.
Or:
Touch Find > User Tab.
Or:
Touch Find > Search Name > Search by Facility Name. Enter the
facility name using the keypad.
Or:
Touch Find > Search City > Search by City. Enter the city name using
the keypad.
6) Touch Enter.
7) Repeat steps 4-6 for each additional waypoint.
Creating a stored flight plan using the G3X Touch:
1) Press the MENU Key twice.
2) Touch Flight Plan List.
3) Press MENU.
4) Touch New Flight Plan.
5) Touch Add Waypoint.
6) Enter the waypoint using the keypad.
Or:
Touch Find > Recent Tab.
Or:
Touch Find > Nearest Airports Tab.
Or:
Touch Find > Flight Plan Tab.
Or:
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Garmin G3X Touch Pilot's Guide 190-01754-00 Rev. L