Cannot get thr triple screen settings to save

Hi,
I am a new user to AMS2, in fact new to sim racing. After doing lots of research, AMS2 was my game of choice but the set up is becoming a nightmare. I found out that disconnecting the fourth monitor appeared to allow left and right screen settings, having appeared to allow centre screen only. I thought this was it sorted.However, after inputting all the dimensions and backing up to test a car, only one monitor works. When i return to the triple screen settings again, everything has returned to Zero. there is no 'save' button anywhere, this is driving me mad. Anybody got a clue ? When i switched on today, Steam did a game update. I have never had the triple screens working, i am literally just trying to set this damn game up for the first time. Please help.

 

don’t use 4th monitor , it causes conflict, ( you can look at workarounds for using it later on ) .
Sometimes, you need to click the little checkbox for triple screen on and off again to get it to activate the mode .
Just clicking back after doing settings will auto save .

 

Take a look here
[WORKAROUND] AMS2 - Incompatibility with Quad Monitor Setups