To edit a chart legend:
Double-click on the chart.
A gray border appears around the chart and the menu bar now contains commands for editing the objects in the chart.
Choose \<emph\>Format - Legend\</emph\> or double-click on the legend. This opens the \<emph\>Legend\</emph\> dialog.
Choose from the available tabs to make modifications, then click \<emph\>OK\</emph\>.
To select the legend, first double-click on the chart (see step 1), then click on the legend. You can now move the legend within the chart using the mouse.