Hi Johan,
I think that what you are looking for is this package: Backup Config Module - Beta - Final stage
Take a look at the posts from that thread just to be sure that you know what to expect.
There is an issue like after you hit create backup, the page remains with the loading image.
Even if the backup is created it is still the same.
But the package should run ok.
I did not test it on NS7 final but this is a chance to test it.
BR
Bogdan