Well actually it is 10 screens plus 1 beamer screen that got warped between the screens, which for most of the time serves as main view windshield to look outside, like this
I use yourcontrols to connect the 2 pc together.
The 3 topscreens and the beamer connect on 1 pc with 3090 card so 4 screens( but seen as 2 explained later in this post)
The second pc (which i use as main pc ) running with the 2 3060ti cards, has connected 7 monitors to it. 4 bottom screens 19 inch lined up running seperate in nvidia cpl and on top 3 22inch and are merged together by nvidia surround view.
The bottom screens are connected to 2nd 3060ti and 3 top screen to 1st 3060ti
While the first card drive the sim it uses 8 point somewhat gb of 8gb vram and the second card uses 0.3 gb of 8 gb also i have set in windows a large swapfile
I know the sim should crash because of overexceed vram on the 1st card but it doesnt yet and i run this for over a year in this pc config with these two cards.
Vram
For the colouring, i use nvidia control panel option destop colouring. This will give me the control of colouring each screen individually and adapt to each part of the world, i prefer this over
Game filters by nvidia which have other beneficials but thesee i do not use yet.
Also the top 3 screens are connected through matrox triplehead2go a smal device which is using just one display port and output to display 3 dvi ports. This would leave the option to connect to more screens or beamers if i would like and although i experiment some times with this i have more ideas about this i leave this for now.
Also great freedom which is offered by the use of second pc and licence of msfs is the next picture
Yes this is one picture not two merged together
Now notice how the top screens are positioned it give lots of freedom
But it gives more possibilities.
Hope this info give some explain to your questions
If there is more questions let me know and i will try to answer.
Cheers
Sebastiaan
If you want see it work i have upload a link in video and streaming section