With a scroll wheel mouse interface and free software you can use a PS/2 compatible scroll wheel mouse on your Commodore Amiga Computer
ScrollWheel Drivers (2 options available – only install 1)
http://aminet.net/util/mouse/WheelBusMouse.lha
http://bax.comlab.uni-rostock.de/uploads/media/UWMouse_03.lha
FreeWheel is also required, it’s a utility to pass scroll wheel movement to applications or workbench
http://aminet.net/util/mouse/FreeWheel.lha