Enlarging (zooming) part of a chart

To zoom in on part of the chart, move the cursor to the upper right hand corner of the area you wish to magnify, and hold down the the left hand mouse button. Now without releasing the button, drag diagonally downwards and to the right. A yellow box will appear (see below) showing the area that will be enlarged. Release the button and the highlighted part of the plot will be enlarged. To return to the full plot simply reverse the process by left clicking and dragging the cursor up and to the left.

The enlarged area of the plot is shown below.