Detect which Monitor is VR device

Let's start with the manual section on multiple displays.
http://docs.unity3d.com/Manual/MultiDisplay.html

When a standalone Unity app runs on Windows, the resolution chooser dialog lets the user pick a monitor that hopefully corresponds to the VR device. From the docs, there are 8 monitor slots and the user has to guess which one is the VR device.

Is there an easy way through script to determine which device is the VR device and activate that one?

Through Mono and...

Detect which Monitor is VR device