F2: Assign Ae-L/Af-L Button; F3: Reverse Dial Rotation; F4: Slot Empty Release Lock; F5: Reverse Indicators - Nikon D5300 Reference Manual

f2: Assign AE-L/AF-L Button

Choose the role played by the A (L) button.
Option
B
AE/AF lock
C
AE lock only
E
AE lock (Hold)
F
AF lock only
A AF-ON

f3: Reverse Dial Rotation

Reverse the direction of rotation of the command dial when
they are used to make adjustments to exposure or flash
compensation (Exposure compensation) and/or shutter speed
and aperture (Shutter speed/aperture). Highlight options and
press 2 to select or deselect, then press J.

f4: Slot Empty Release Lock

If Release locked is selected, the shutter-release button is only enabled when a
memory card is inserted in the camera. Selecting Enable release allows the shutter
to be released when no memory card is inserted, although no pictures will be
recorded (they will however be displayed in the monitor in demo mode).

f5: Reverse Indicators

If
information display are displayed with positive values on the left and negative values
on the right. Select
positive values on the right.
194 A Custom Settings: Fine-Tuning Camera Settings
Focus and exposure lock while the A (L) button is
pressed.
Exposure locks while the A (L) button is pressed.
Exposure locks when the A (L) button is pressed,
and remains locked until the button is pressed a
second time or the standby timer expires.
Focus locks while the A (L) button is pressed.
The A (L) button initiates autofocus. The shutter-
release button can not be used to focus.
(V) is selected, the exposure indicators in the viewfinder and
G button ➜ A Custom Settings menu
Description
G button ➜ A Custom Settings menu
G button ➜ A Custom Settings menu
G button ➜ A Custom Settings menu
(W) to display negative values on the left and
A (L) button