Avidyne IFD540 Pilot's Manual page 75

The "Nearest" LSK along the left edge can be used to cycle
through the various nearest types. Choices include:
 Nearest Airports
 Nearest Airports to Destination
 Nearest VORs
 Nearest NDBs
 Nearest Intersections
 Nearest ARTCCs
 Nearest FSS
 Nearest Airspace
 Nearest User Waypoints
When using the split Map-Nearest view, the row that is
highlighted in the Nearest list will also be highlighted in cyan on
the map.
For those rows that contain a frequency, touching the frequency,
or using the bottom right IFD knob to highlight it and then pushing
the knob will nominate the frequency into the #1 standby slot.
For those rows that contain a lower case blue info "i" symbol in
the middle of the row, touching the info "i" or using the bottom
right IFD knob to highlight it and then pushing the knob will jump
the page to the INFO tab with that facility information displayed.
For those rows that contain a chart icon on the right side,
touching the chart icon or using the bottom right IFD knob to
highlight it and then pushing the knob will jump the page to the
CHART tab on the MAP page with the Chart directory for that
airfield displayed.
Each Nearest type list can be scrolled either via touch (use a
vertical swipe of the finger) or via the bottom right IFD knob.
If the highlighted item is an airport, pressing the Direct-To
function key on the bezel will display the Direct-To green dialog
box with the highlighted airport pre-populated as the Direct-To
location.
FMS Pages 2-37