A pseudo-mouse is configured automatically during installation when you run mkdev mouse. This allows you to use applications that expect mouse input within a scoterm window.
To demonstrate the use of the pseudo-mouse, run
usemouse in a scoterm window, then
press <Ctrl><Alt><Bksp>. Notice your pointer disappears, but
the cursor in the window now moves with the mouse. Press
the same keys again to get the pointer back.