To overlay 2D histogram plots (simultaneously viewing multiple overlays with similar range on the same plot
A different marker will be used for each plot, to allow one to differentiate between the plots. A default legend showing the meaning of each overlay (different markers) is shown on top-left side of the plot. T his can be modified from inside the Plot Properties --> Advanced tab.
Example of overlayed 2D Histogram Plot is shown in the Figure below:
Overlayed 2D Histogram Plot