Nikon D6 Reference Manual page 936

g3: Multi Selector Center Button
Choose the role assigned to the center of the multi selector
during filming.
Role
[Select center
K
focus point]
X
[Zoom on/off]
1 [Record movies]
[None]
g4: Highlight Display
Choose whether shading is used to indicate highlights (bright
areas of the frame) during movie recording.
884 A Custom Settings: Fine-Tuning Camera Settings
G button U A Custom Settings menu
Pressing the center of the multi selector selects
the center focus point.
Press the center of the multi selector to zoom
the display in on the area around the current
focus point (the zoom ratio is selected in
advance). Press again to return to the previous
display. To choose the zoom ratio, highlight
[Zoom on/off] and press 2 .
Press the center of the multi selector to start
recording. Press again to end recording.
Pressing the center of the multi selector has no
effect.
G button U A Custom Settings menu
Description