Changing Offset

If the displayed waveform is not centered on the zero amplitude line, or if you wish to examine waveform peaks, you can change the DC offset of the plot. In order to do this:

Drag the vertical scrollbar thumb.

Click the up/down scrollbar arrow (the window moves by 1/4 of its content) or click on the scrollbar strip above/below the thumb (the window moves by 3/4 of its content).

Press the keyboard CTRL+HOME key whenever you want to restore the zero offset.