Furuno GP-3500 Operator's Manual page 59

9. Do the follows depending on selection made at step 7.
2 PTS
Squares (memory points) appear on the track.
a) Operate the trackball to place the cursor on the starting memory point to
erase.
b) Press the [ENTER] knob. A green dot appears on the starting point.
c) Operate the trackball to place the square on the ending memory point to
erase.
d) Press the [ENTER] knob twice.
e) Press the [MENU] key several times to close the menu.
AREA
a) Operate the trackball to move the cursor to the starting point of the area to
erase.
b) Press the [ENTER] knob.
c) Operate the trackball to move the cursor to the ending point of the area to
erase. A green rectangle appears.
d) Press the [ENTER] knob to change the color of rectangle from green to
white.
e) Press the [ENTER] knob again.
f) Press the [ENTER] knob several times to close the menu.
INSIDE, OUTSIDE or ALL
a) Press the [ENTER] knob.
b) Press the [MENU] key several times to close the menu.
Own Ship
Memory point
Track
Starting point
Green rectangle
(All tracks in this area are erased.)
Erasing area
Cursor
3. TRACKS
3-17