Mark a waypoint using coordinates

Tap the blue Map button on the TRX Dashboard.
Tap the Detail Waypoint button in the lower right screen.
Select the type and select add details in the lower left screen.
Select Coordinates then tap set coordinates.
Tap on either numerical text box and use the number pad to change the coordinate numbers.
Tap on the cardinal direction letters to toggle between N & S and E & W.
Tap Done once you've entered the coordinates.
Confirm the location of the coordinates on the next page.
Tap Save to continue to mark the Coordinates Waypoint.