+1 for displayplacer. I use it for 4 external monitors (2 vertical) and it's a god-send. I also recommend people look into software to move their app windows in

+1 for displayplacer. I use it for 4 external monitors (2 vertical) and it's a god-send. I also recommend people look into software to move their app windows into prefered locations. I use Phoenix [0] to resize/place my windows in their designated spots when I hit a hotkey. I tried stuff like Stay [1] and a few other similar tools that I forget the names of but they didn't work well or at least didn't work well on a multi-monitor setup. Phoenix required a little more up-front work but now it works perfectly for my needs. [0] https://github.com/kasper/phoenix https://github.com/kasper/phoenix [1] https://cordlessdog.com/stay/ https://cordlessdog.com/stay/