Please define :
In order to physically set up the screen wall, you need to define the position of each screen on the wall, so as to connect them in series (block of 4 screens). On older generation screens, we use Display Port in/Out:.
Choose your first screen. At the rear of the screen, connect a DisplayPort cable to the “Display OUT“ output. This same cable should then be connected to screen number 2, on the “Display IN“ output. This operation must be repeated from screen 2 to screen 2 (on the opposite side), and from screen 2 (on the opposite side) to screen 1 (on the opposite side).
On new-generation screens, we only chain HDMI 2.0 :
Choose your first screen. At the rear of the screen, connect a DisplayPort cable to the “HDMI OUT“ output. This same cable should then be connected to screen number 2, on the “HDMI IN“ output. This operation must be repeated from screen 2 to screen 2 (on the opposite side), and from screen 2 (on the opposite side) to screen 1 (on the opposite side).