A legend is an element of a scatter chart that identifies chart points (for instance, colored points corresponding to argument values).
This topic describes how to customize various legend settings.
Visibility
You can specify whether or not a chart should display a legend.
In the Designer, use the Show Legend button in the Legend section of the Design Ribbon tab (or the 
button if you are using the toolbar menu).
Position and Orientation
To specify the legend's position and orientation, select one of the predefined options from the gallery in the Design Ribbon tab.
If you are using the toolbar menu, use the 
button to invoke this gallery.
