I have two 21.5" full HD monitors, one 43" 4K monitor. I am using AMD FirePro W4100 graphics cards. How do I extend full screen mode to the two full HD monitors and also bottom half of the 4k monitor, so that the when I open a software in full screen mode, it will only occupy the two full HD monitors and bottom half of the 4k monitor, and the upper part of the 4k monitor will be empty screen for me to use other software.
I tried to use eyefinity, but it can only let me choose 3x1, in full screen mode, it will occupy the two full HD monitors and bottom part of the 4k monitor, but the upper part of the 4k monitor is black out and inaccessible.
I hope you can help me to figure it out. I need to use the full screen in this way so that the software when open in full screen mode is like extending the screen to four full HD monitors side by side, and I would have "two full HD monitors" (=upper part of the 4k monitor) available for other apps.
Please let me know soon. Thank you.