What is the problem?
I have a 7" touchscreen connected to the Raspberry and I've wanted to use it as a printing console.
What did you already try to solve it?
I've set up "Desktop logged in" option in "raspi-config", downloaded Chromium for it, and get in 0.0.0.0, but the screen becomes almost unresponsive, acting completely random on moving the screen up or down (With, and without TuchUI), and the processor literally burned my finger...
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware,
serial.log or output on terminal tab, ...)