Persist ntlm auth = yes in smb.conf?

From my windows 10 client, I cannot authenticate against open media vault unless "ntlm auth = yes" is in the smb.conf file. If I add this in manually, I can access the shares (otherwise I get password incorrect).

Problem is that this is an OMV generated file, so any changes via the GUI wipes this setting.

Is there any way to persist this?

Thanks. Exactly what I wanted.