Why doesn't a group inherit user rights in Nas4Free?

Question

FreeBSD

Hello.
There is nas4free:
Wirth device is a mirror, there is a pool in it, in the pool - ZFS dataset. In it - like this:

Dataset is connected via samba, authorization - local users.
It is necessary that when the user user1, who is a member of the snab group, creates or edits a file in the folder of this dataset, the rights of the group in which he is a member are the same as his - write, read, etc. At the moment, if the user (any of the group) changes / will create a file - it has read and write permissions, while the group has read-only permissions. Poke your nose. Thank you.

Answer 1

I won’t tell you for nas4free, but you need to look at create mask and directory mask in smb.conf