To zoom in or out of the entire chart, click the chart and use the scroll wheel or press Shift + middle mouse button.

The chart expands or shrinks as you roll the wheel (or move the mouse) toward you or away from you, remaining centered in the pane. The chart can be panned or rotated when it is magnified.

To magnify a particular area of a chart, right-click and drag a box top to bottom over the area you want to view.

The contents of the box you draw are magnified, so the smaller the box you draw, the closer the magnification on a particular area.

To reduce the chart to a particular size, right-click and draw a box bottom to top over the chart.

The chart zooms out to roughly correspond to the size of the box that you have drawn, so a very small box gives you a tiny chart.

To pan, press Ctrl + middle mouse button and move the mouse left or right.