Avidyne IFD540 Pilot's Manual page 63

COOL FEATURE
Hot Links to Charts in Flight Plan Whenever a
flight plan leg (blue airfield legs) has at least one
published approach associated with it, a chart icon
is presented on the right edge of the flight plan leg.
If there is a published precision approach, the icon
will also contain an "I". By using the right-hand knob
on the IFD, scroll through the flight plan elements
until the chart icon is highlighted in reverse video. If,
at that time, the knob is pushed in, the IFD will
display either the specific chart for that associated
procedure or the directory of possible procedures
for that airfield.
Hot Links to Charts
FMS Pages 2-25