I agree with previous post.
Having several monitors but for different roles.
If FD said thered be possibility for 4, I'd save up to get a 'puter to handle them.
One front view, 2 on either side as a wrap around cockpit view, or side views, and an additional one for info in flight, so that i could consult prices, or chat, or anything else without losing sight of my target,, and why not add in a tablet capability too ???
so many possibilities with todays, and especially tomorrows advances in tech !!!