This is a quick guide how to workaround some issues such as computer going idle when you're playing. You will need software from DS4Windows and Borderless Gaming in order for some of these workarounds to work.

DS4Windows
http://ds4windows.com/

Borderless Gaming
https://github.com/Codeusa/Borderless-Gaming


Prevent computer from going into idle mode when using a PS4 controller
1) First you need to install DS4Windows in order to emulate a Xbox 360 controller.
2) In DS4Windows enable Hide DS4 Controller in the settings.
Done!

Disable mouse cursor appear on screen when using a controller
1) In Borderless Gaming add the game to favorites
2) Right click on the game and select Hide Mouse Cursor
Done!

Custom resolution when gaming on a second monitor/TV
1) In Borderless Gaming add the game to favorites
2) Right click on the game and select No Size Change, then select Set Window Size
3) Set the window size you want, for example a 1920x1080 resolution should look like this: 0x0-1920x1080
4) Launch the game, set the display to Windows only. Now you can easily move the borderless window by pressing Win+Shift+Arrow keys to a second display
Done!