Well it’s kind of unrelated. Autofs will first just establish a connect between your Vero and the NAS. If you on the NAS currently only have one export then it will use that one export
How you then point your sources to the different sunfolders and if you want to use path substitute is another topic.
Read this guide
Autofs config is in etc and can be included in a backup.
And actually if used from day 1 it makes moving NAS much simpler.