that might help but I also found out that when I click on the larger number field and use the OnScreenKeyboard(OSK) the up/down arrows work fine.
Some of this is just finding the right ways to get the same task done after a few years of using mouse/touchpad and keyboard and now moving to a touchscreen.
LightBurn is a great laser cutter app at the laser cutter but it’s getting really good at design stuff too so it stands to reason it would make a kick-butt UI at the machine so why drag your computer to the machine if an old tablet running LightBurn can be mounted at the machine.