this should be in AC by default finally some one did it , i use 7680x1440 resolution triples, and to get the mirror in the middle and fit the virtual mirror this is what i had to change
very good idea but it does not work on a triple screen, display on the left screen and not on the central screen The mirror is transparent and does not display the image from behind. is it possible to make an update for the triple screen 5760x1080 or can I make a modification of the application files ???