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5. RADAR MAP AND TRACK
5-6
3. Specify the area as follows:
1) Put the cursor on the start point and push the left button.
2) Drag the cursor diagonally to the end point and push the left button.
All marks and lines within the area selected are highlighted in blue.
4. Right-click the display area to show the context-sensitive menu.
5. Click [Area Mark Delete] to delete the marks and lines in the area selected.
5.8.3 How to erase all radar map marks and lines in a map file
You can erase all radar map marks and lines in the map file currently displayed. Be
absolutely sure you want to erase the marks and lines - erased marks and lines cannot
be restored.
1. Right-click the [Mark] box, select [Map/Mark Menu] and [1 MARK SETTING].
2. Select [8 MAP MARK ALL DELETE] (B type) or [7 MAP MARK ALL DELETE]
(IMO and A types).
3. You are asked if you are sure to delete all map marks. Click the [OK] button to
erase all marks and lines.
4. Close the menu.
Start point
End point
Marks within the area
are colored light blue