How to activate SMBv1 on OMV5 in order to be compatible with SONOS?

First, I precise I'm new to OMV or Raspberry, so my questions are probably very basic.

As I use SONOS music system, I need a NAS with SMBv1 enabled.

So I bougth a RaspberryPI 3, installed OMV5 on it, and tried to enable SMBv1 by adding the following lines in the 'extra options' of the file \etc\samba\smb.conf :

ntlm auth = yes

server min protocol=NT1

To do so I used the nano editor (cmd : sudo nano filename) and the ^O option to save the modified file.

But SONOS still can't see my shared folder, and I realized that after a reboot, the \etc\samba\smb.conf file comes back to its original state (without my modifications).

So my questions are the following :

is it the right way to enable SMBv1 on OMV5?

If so, how to do it effectively? And how can I check that SMBv1 is actually activated?

thanks

Thanks Chente for your answer.

Actually I found out how to properly modify the smb.conf : previously I used the 'nano' editor directly on the rasperrypi, and it didn't work (the modifications were not saved) ; it seems to happen from time to time with some sdcards. So I edited the file on Windows10 with Ext2fsd, and did my modifications with Notepad++. And it worked!

The lines I add were the following :

ntlm auth = yes

min protocol = NT1

I don't know the difference between "min protocol = NT1" and "Client min protocol = NT1", but it works fine.

Quote

I suggested to add those to the extra options in the GUI of OMV

How can I do it ?

Ok thanks !