Instale o Autohotkey e este script:
^+WheelUp:: ; Scroll left.
ControlGetFocus, fcontrol, A
Loop 20 ; <-- Increase this value to scroll faster.
SendMessage, 0x114, 0, 0, %fcontrol%, A ; 0x114 is WM_HSCROLL and the 0 after it is SB_LINELEFT.
return
^+WheelDown:: ; Scroll right.
ControlGetFocus, fcontrol, A
Loop 20 ; <-- Increase this value to scroll faster.
SendMessage, 0x114, 1, 0, %fcontrol%, A ; 0x114 is WM_HSCROLL and the 1 after it is SB_LINERIGHT.
return