In @RISK (risk analysis software using Monte Carlo simulation), you can easily overlay two graphs directly from any graph window. Just click on a button to identify the variables to overlay, and you’re done. Alternatively, you can drag thumbnails of different simulated results onto the same graph to create overlays. These overlays in the risk analysis models are useful for comparing different strategies, showing trends over time, and more.
A quick video showing how to do this:
PALISADE INSIGHT 