Garmin G3X Touch Pilot's Manual page 297

3) Touch the Line Tab to display the Heading Line setup options.
4) Touch the Heading Line Off/Distance/Time Button.
5) Touch the Off Button to turn the heading line On or Off.
Or:
Touch the Distance Button to define the length of the heading line by
distance. Touch the distance value button to bring up the keypad to select
the distance, and touch the Enter Button.
Or:
Touch the Time Button to define the length of the heading line by time.
Touch the + Button or - Button to select the time.
6) Press the BACK Key to return to the Map Page.
190-01754-00 Rev. A
Heading Line Settings (Map Setup Page)
Garmin G3X Touch Pilot's Guide
Appendix B
279