Hi,
currently there is no direct way to do it but a workaround for now could be to export your scene as .vantage format and then if you have any changes made in your max scene, you can export .vrscene file with the same name as your vantage file in the same directory.
This may work in some cases only.
I have logged this as a feature request in our system
(Report ID=CMAX-1180)