Modifier Key	Left Button	Middle Button	Right Button
None	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse
Shift +	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse
Ctrl +	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse	None Pan Zoom Roll Rotate MultiRotate ZoomToMouse