Legend

The display and format of the legend is user controlled through its Legend property setting. The legend displays useful information such as:

which Profile is plotted against which Y-axis scale
configured label for each Profile (labels - Profile 0, Profile 1, Profile 2, Profile 3, and Profile 4 - are used in the figure above)
configured line type and marker for each Profile
Y-axis scale labels (YScale0, YScale1, YScale2, YScale3, and YScale4 are used in the figure above)
the profile labels are displayed in the same color as its y-axis scale
Y-axis scale colors

Remarks

If a Y-axis scale label is empty, it will not be displayed in the legend.