I’ve a USB graphics tablet, XP-Pen G430. I can’t find any way to configure the area mapping (or anything for that matter). The default is to map the whole area to the entirety of my 2 monitors; I need to map a smaller rectangle to a single monitor.
I’m on Fedora 33 (GNOME 3.38), using Wayland. I’m able to configure the area fine on e.g. sway.