Overlay Data - Lowrance M56 S/Map Installation And Operation Instructions Manual

Another option is course-up mode, which keeps the map at the same
orientation as the initial bearing to the waypoint. When either the
track-up or course-up mode is on, an "N" shows on the map screen to
help you see which direction is north.
To change map orientation: from the Map Page, press
|
O ENT
RIENTATION
Press |
EXIT EXIT
Map Menu, left; Map Orientation menu with
the North Up map orientation option selected, right.

Overlay Data

The Sonar Page and the Map Page can be customized to show many
different types of navigation information as text that "floats" on top of
the screen. This is called overlay data and is controlled by the Overlay
Data command.
Depth
Water
temp.
Distance to
destination
Sonar Page with Overlay Data turned on. This example shows Depth,
Water Temp. and the Distance to the next waypoint in the current route.
. Use ↑ or ↓ to select the desired mode, then press
to return to the page display.
121
|↓ to
MENU M
AP
ENT
.