2.Use ↓ ↑ to select a Data Type, then press ← → to turn off (uncheck) the data option. The selected data type disappears from the top of the list and reverts to its previous, unchecked position. If you wanted, you could use ↓ ↑ to select other data types.
3.To return to the previous page, press EXIT.
To change displayed data font size:
1.From the Map, Sonar or Map with Sonar page, press MENU↓ to
OVERLAY DATAENT.
2.Use ↓ ↑ to select Data Type, then press ← → turn on (check) the data type and modify the data size. Use ← → to scroll through four data size options: Small, Medium, Large and Enormous. After you are satisfied with the data size, press EXIT. The selected data type will be displayed in the new size. To change the font size for another Data Type, press ENT and repeat these steps, beginning with step two above.
3.To return to the previous page, press EXIT.
Depth 
Water 
temp
Distance to destination
Sonar Page with Overlay Data turned on. This example shows Depth,
Water Temperature and Distance to the next waypoint.
