If you use charting software like TradeStation which supports multiple "Desktops", you can effectively multiply your available chart displays (provided your computer CPU is fast enough) without adding monitors. On one of my trading computers, which drives 7 to 8 physical monitors, I dedicated 4 monitors to display charts of different stocks side-by-side. 8 charts (2 per stock) on each monitors. That makes 32 charts total on 4 monitors. I created a second and third (and so forth) TradeStation "desktops", each spanning over 4 monitors. Each of these desktops can contain another 32 charts either on the same basket of stocks with different settings, or same chart settings on a different basket of 16 stocks. You just simply use Alt-Tab to switch between different TradeStation desktops to view the different sets. The only issue is during the opening minutes. Many charts slow down the real time update on each (too many price prints coming across). But usually after 15 to 30 minutes it would work fine for the rest of the day.