I’m using Vantage a lot in my workflow and I’m even almost replacing it with Vray’s IR due to its speed.
I was thinking that it would be useful to have a key or key combination to copy the clipboard so that I can paste it for review drafts with other users.
Have you tried Ctrl+C? 
Hi visualtracing__,
You can already copy the Vantage viewport with Ctrl+C and it goes in clipboard. It is also listed in the Edit>Mouse and Key shortcuts dialog:https://drive.google.com/uc?id=1FhGPy-bM2tUQWZA08tcJ36xor1vr8OQk. Then you can paste it where ever you like.
Best regards,
Alexander
oops sorry 