extasy

I am considering buying a 49' 4K TV to use as a monitor (I am aware of all the HDMI 1.4/2.0 refresh rate stuff, input lag, etc.). However in some use cases 49' is too much, so the perfect solution would be to virtually reduce the size of the screen. QHD virtual screen would take about 32.5', which is perfect for me, so is it possible at all?