Furuno GP-3500F - Manual (Page 61)

3. TRACKS
3-17
9. Do the follows depending on selection made at step 7.
2 PTS
Squares (memory points) appear on the track.
Own Ship
Memory point
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.
Green rectangle
(All tracks in this area are erased.)
Starting point
Cursor
Erasing area
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.