Not that it matters much but I am confused about what you you think needs doing. I gather for total realism you want to be able to input that the second (and third, fourth) monitor is: xx inches to the right, left, above, below, in front of, behind, at an angle of, is bigger or smaller than and difference in tilt of. Has a dot pitch of and needs a color correction of. Is a CRT, plasma LCD.........
Shouldn't be all that hard