So I know there's zooming tool in universal access menu in Ubuntu, but currently I can't find how to operate it through command line, plus it can't zoom out.
My second attempt is use xrandr --output Virtual1 --panning 3840x2160 --mode 1920x1080
but it has restrictions which currently I can only zoom in two times or four times, in another word predefined resolution.
So I'm looking for any zooming tool that allows me to both zoom in and zoom out the how viewport through terminal (not something like changing terminal font). Is there any tools like this available out there?