This isn't as well published as it should be. It works tremendously well for export/import and capabilities package versioning (and backup). You need to have a single vRA instance with a CodeStream license on it... out of band of your DEV/TEST/PROD, etc vRA environments. You add your environments (vRA, vRO, and Filesystem-e.g. scripts) as endpoints and capture the parts that you want to export into releasable packages. This capture is versioned and stored in an Artifactory repository on the CodeStream vRA server. It can then be released back into the same environment or into any other environment.
If you are on 6.x, I recommend getting an eval license and trying it out... (6.0 may not be supported, so it may not help you for this effort... but if you get on top of this capability, it may help you in the future.)
If you are on 7.x, my guess would be that they would eventually release a similar capability at some point in the future.