*Mouse Button*	*Action*
Left	Rotate
Middle	Pan
Right	Pick, move ROI box, or move slice
Right + [Shift]	Resize ROI box
Wheel	Zoom
*Key*	*Action*
+	Zoom in
-	Zoom out
[space]	Reset view

*Mouse Button*	*Action*
Left	Mark event position
Middle	Pan
Right	Zoom in time
Wheel	Scale voltage
Wheel + Right	Change spacing between graphs
Wheel + Left	Change sensitivity of the coloring of the head surface