If you mean a cylinder / firing order overlay that will be a "Negative Ghost Rider"
I believe there are issues over a patent that is held by AES Wave, there are a couple of paid for versions out there or there is a basic free one in the Microsoft store.
The Microsoft "Overlay" version Kev is referring to has been used here topic22665.html
Unfortunately you are required to take a screen shot of your PS7 capture and then drag this into the Microsoft Pressure Waveform Overlays software rather than place the overlay on top of an active PS7 screen
Either way, it has helped enormously and assists with cylinder activity which is the end game