SMB as main storage

I use this addon for Homeassistant: GitHub - haberda/hassio_addons: hopefully useful hassio addons to use Nextcloud. My problem is that it now always saves the data on my SSD, which is intended for Homeassistant. So I added a 1TB HDD and shared it via SambaNas. I can add it to Nextcloud but I can’t find the option to use it as main storage. Is that possible somehow?
Thanks for your answers!

maybe this can help you.

Many have tried to use a SMB mount for the data folder… I have personally never heard of that working. I advise against it.

If your NAS supports iSCSI, that will work. Supposedly NFS can as well. But SMB probably will not.