D3: Sync. Release Mode Options; D4: Exposure Delay Mode - Nikon Z 5 Reference Manual

d3: Sync. Release Mode Options

Choose whether the shutters on the remote cameras are
synchronized with the shutter on the master camera when
using an optional wireless remote controller.

d4: Exposure Delay Mode

In situations where the slightest camera movement can blur
pictures, shutter release can be delayed by from about 0.2 to
3 seconds after the shutter-release button is pressed.
A Custom Settings: Fine-Tuning Camera Settings
368
G button U A Custom Settings menu
G button U A Custom Settings menu