How to change identities of my monitors

[Senpai2120]

https://gyazo.com/2bc0de4f8e4a0125078e10cbf4e868f9

I need my 2nd monitor to be the first monitor for a wallpaper. any help?

 

[USAFRet]

https://gyazo.com/2bc0de4f8e4a0125078e10cbf4e868f9

I need my 2nd monitor to be the first monitor for a wallpaper. any help?

Select the other screen, and you should see this:

Click on "Make this my main display"