Kensington Expert Trackball
Reorder buttons to my preference.
Listing 1: /etc/X11/xorg.conf.d/50-kensington_expert_mouse.conf
Section "InputClass" MatchProduct "Kensington Expert Mouse" #Identifier "Clockwise from bottom left, Left click, back, right click, middle click" #Option "ButtonMapping" "1 10 3 4 5 6 0 2" # Left handed version (mirror of above) Identifier "Clockwise from bottom right, Left click, right click, middle click, button 10" Option "ButtonMapping" "3 2 1 4 5 6 0 10" EndSection