You can configure custom device policies to control whether specific types of USB devices can be used on virtual machines created from a Horizon FLEX image.
Important: If the USB device controller is present in the source virtual machine, you can configure a policy to enable or disable this feature when users download an instance of the virtual machine. If this feature is disabled in the source virtual machine, you cannot override the virtual machine settings by enabling this feature in a policy.
Procedure
What to do next
Entitle the Horizon FLEX virtual machine. See Entitle a Horizon FLEX Image.