Furuno GP-1850WF - Manual (Page 58)

7. ROUTES
7-6
7. Press the [SAVE/MOB] key with a
touch-and-release action to enter a
waypoint mark at own ship position. A
new waypoint is created under the next
consecutive waypoint number and that
waypoint is added to the route.
8. Repeat step 7 whenever you change
course. 35 waypoints can be entered.
9. To stop creating the track-based route,
press the [WPT/RTE] key followed by the
CREATE VOYAGE BASED ROUTE soft
key.
10. Press the FINISH LOG soft key to
register the route. The SAVE icon
disappears.
7.5 Erasing Routes
1. Press the [WPT/RTE] key followed by the
ROUTES soft key to open the route
menu.
2. Press ▲ or ▼ to select a route you want
to erase.
3. Press the ERASE ROUTE soft key. You
are asked if you are sure to erase the
route.
4. Press the [ENTER] key to erase the
route.