Garmin GPSMAP 580 Owner's Manual page 26

Operation Mode
To edit the route on the map:
1. On the Main menu, highlight the Route tab.
2. Select a route, and press Enter.
3. Press Menu to open the Route Review page options menu.
4. Highlight Edit on Map, and press Enter.
5. Select a location on the route (the route turns red when the
arrow is over the route), and press Enter.
6. Use the Rocker to drag the route to the new point location,
and press Enter.
Editing the route on the map
7. Repeat steps 4 through 5 to add any remaining points to the
route.
20
To plan your route:
1. Open the Route Review page options menu.
2. Highlight Plan Route, and press Enter.
Enter
ing Speed and Fuel Flow for trip planning
3. To enter data for Speed, use Rocker to highlight the data
field.
4. Press Enter and use UP/DOWN to key in the number.
NOTE: Fuel flow rates are measured in units per hour. System
setting changes for units of measure (statute, nautical, or metric)
do not affect the fuel flow measure. You should enter fuel
flow rates based on information for your vehicle (such as the
operator's manual or performance specifications), and make note
of the units of measure (gallons or liters).
GPSMAP 580/585 Owner's Manual