Backup config and restore

Can I back up the config (settings, mounts etc) on my Vero 4K and retore it on my Vero V? Or do I have to set up the Vero V from scratch?

There is a section of the My OSMC addon where you can configure what userdata to backup and restore, and where to generate this file, including fstab and autofs mounts if you enable the option.

Yes – should work just fine.