PLG12863E AFI4700 Pilot’s Guide 63
3.3.6 GPS Overlays
The FMS/GPS map overlay presents the active flight plan to the pilot
on the HSI if the FMS/GPS primary navigation source is selected. It is
enabled by the center bezel button. Additional map elements (route,
navaids, and airports) not on the active flight plan can be hidden from
view by selecting the center bezel button.
Figure 3-19: GPS Map