YES! We have used the Newforma + Bluebeam Studio Integration!
This set-up sends the RFI (or Submittal) from Newforma Project Center and automatically creates a Bluebeam Studio Session based on the Subject of the RFI/Submittal. The team would need to determine how to say they are finished reviewing (ie. using your personal status so the owner gets a daily update of their Sessions) and then it gets closed back in Newforma.
The beauty with this is that my whole team internally, as well as our external consultant friends, can be in the same PDF, at the same time, and can notify each other for clarifying questions. Then, when I close in Newforma, the Studio Session will be removed from Bluebeam. So it sort of acts as a daily reminder of outstanding CA items.