Garmin GPS IIplus Owner's Manual page 72

Reference
Fig. 66a
Fig. 66b
66
Using the Cursor to Mark and GOTO Waypoints
During panning, the crosshair represents a target position right on the Map Page,
with the range and bearing to the target displayed at the top corners of the screen.
You can also use the target crosshair to mark a new waypoint position or as a GOTO
destination right from the map field.
To mark the target crosshair position as a new waypoint:
1. Press MARK (Fig. 66a).
2. Enter a name and/or route number, and press ENTER.
You can also use the target crosshair as an instant GOTO destination. This fea-
ture is similar to the MOB mode, and will allow you to mark and instantly set a
course for a new waypoint called 'MAP'.
To GOTO the target crosshair:
1. Press GOTO, and press ENTER (Fig. 66b).
To save the MAP waypoint, be sure to rename it because it will be overwritten
the next time a map GOTO is executed.
To stop the panning function:
1. Press QUIT.