Lowrance electronic LMS-337C DF - Manual (Page 98)

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Customize Menu, with "GPS Data" and "Navigation" categories expanded.
Selecting the category name and pressing ENT will show the category's
contents, so you can choose items within it. An expanded category (one
with a "–" next to its name) can be collapsed to hide its contents. Just
select the category name and press
ENT .
Expand any categories that might contain data you want to display.
Then press
↓ or ↑ to select a different data option. With the new option
highlighted, press ENT to switch the contents of the box to the new data
type, then press EXIT . You can now select another box to change. When
you are finished with the settings, press EXIT again to end the Custom-
ize command, and the box name stops flashing.
A Page display can show a limited number of data boxes. You can not
turn them off or add more data boxes.
FlashGraf

The FlashGraf sonar page option represents a flasher style sonar com-
bined with a scrolling chart. A circular dial shows all returning echoes
at a high screen refresh rate. It uses the Colorline feature to show
weaker targets as lighter colors. The bottom depth is also shown as a
black bar across the outer circle. You can adjust the size of the chart
and the flasher windows by using the Resize Window command, which
is described in Sec. 6.