How do dual monitors work?

In this video, I demonstrate how a multi monitor set up is set up and controlled. I also show how it works for gaming, and how it can increase productivity.

0:00 - Introduction
00:19 - How to set it up
02:29 - How to control it
03:32 - How do games work?
06:11 - Why is it useful?

What I used to make this video
Editing: Sony Vegas 13
Microphone: Sennheiser MK4
Camera: Canon 500D

Games I played: GRID Autosport, League of Legends, Rainbow Six Siege
My graphics card: AMD R9 390

My monitors: 27" 1440p QNIX QX2710, and a very old Sony SDM-X75K

Keyboard: It's a custom WASD keyboard from http://www.wasdkeyboards.com/ with cherry MX brown switches

Monitor arms: I got this from Amazon, though I don't think I'd recommend it. It's not easy to position monitors exactly where you want them, and it feels a bit cheap - https://www.amazon.co.uk/gp/product/B00UK1P7CA/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

This is actually the third time I've made this video! It carries on being useful, and the old one was over 6 years old and was in dire need of an update.

Видео How do dual monitors work? канала gazm2k5