Ok, I found a few, interesting add onI bought in online years ago in my constant journey to tinker and slightly improve stuff about my regs. You can Google "Scubapro Video Exhaust Tee" and usually find a few people selling it. I'm not sure if they are still making it for overseas markets or if it's just a bunch of new old stock.
SCUBAPRO Second Stage VIDEO EXHAUST ADAPTER
SCUBAPRO Exhaust Tee extend regulator conduit extending bubble deflector Applicable: Scubapro S600 , R095 .R395 and S560 2nd stage. If the bubble when you affect your vision, then you can use this product in photography Instructions
infinitydive.com
at least I now know that it is an official item.