Similar to the system I'm setting up now. Middle bottom screen contains the desktop of your computer and the other screens have whatever you want.
Imagine this scenario...
Screen1 (bottom left) Live Scoreboard
Screen2 (bottom middle) main desktop page, sportsbooks, etc
Screen3 (Bottom right) lines, etc
Screen4,5,6,7 (top row) NFL games, NBA games, NCAA games, whatever.
Price tag on the one I posted is $10,500. You can buy them with as many as 10+ screens.