You can zoom in on any area in the real-time plot.
Open the Online
Signals window.
Click and drag an area inside the real-time plot to enlarge
the view. The X-axis and Y-axis scale to the defined region and the
plot is displayed accordingly. You can continue to zoom further by
clicking and dragging an area.
To return to the previous zoom view, double-click in the real-time plot or click Autoscale to reset the plot area to the default view.