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Gesture control in normal mode
 Select a channel (CH1 to CH4 button): Press the pointer (yellow/blue) belonging to the channel on the
left side of the display.
 Set the trigger level (trigger level rotary knob): "Swipe" at the pointer (yellow/blue) belonging to the
channel on the right side of the display.
 Adjust the horizontal position (Horizontal Position knob): "Swipe" left/right in the display.