Leica MX400 Operating Instructions Manual page 94

Plot
Ø Automatic Zoom - No is the default condition, which causes the
displayed scale to be controlled by you. Yes causes the boat icon
to be placed along one edge of the screen and the next waypoint
flag to be placed along the opposite edge of the screen. As you
approach your waypoint, the screen will automatically zoom in
on your course, then expand back out after you pass the
waypoint and start the next leg of your course.
If you press the Return softkey, then the Track Plotter softkey, you
will access the recorded track options.
Selecting Erase Track allows you to clear your recorded track. You
can keep a portion, say the last mile or two, of your recorded track
if you like, by specifying the range after you press the Erase Track
softkey. Press Erase Now to confirm your action. Press Escape to
return the previous screen without erasing or E to abort this process.
Version 3.3
Operator's Manual
81