Samyung NAVIS 5100 Instruction Manual page 27

 Track color selection by using Function Key
 [TRACK COLOR, COURSE UP, WAYPOINT]
Color
 Track Line Thickness
)  [1. DATA]
(
 [6.SHAPE]
(
 Time Interval "T" Mark Display
)  [1. DATA]
(
 [7.T-MARK]
(
to change 『ON/OFF』)
(Press
)  [1.TRACK DATA]
(
) (Press button to change thickness)
)  [1.TRACK DATA]
(
)
27
[TRACK COLOR]  Change track
)  [1.SET]
(
)  [1.SET]
(
( )
( )