Following are the list of supported Mac startup keys combinations that can be used by Mac devices boot to the NetBoot, NetInstall or NetRestore image served by the ZENworks server:
Option: When a Mac device boots to the startup manager using the Option key, images which are applicable for the device are listed at the startup manager. The device can boot to any of the listed images.
Option + N: When a device boots using this key combination, the Applicable Severs default image is served to the device.
N: When a device boots using N key, the Applicable Severs default image is served to the device.