[Samba] sharing folder on samba 4AD

[jmpatagonia]

Hello, if I create a new group on samba 4 AD, like POLICIARN\comp11 on
the next list.

root at domain-server2:/# wbinfo -g
POLICIARN\cert publishers
POLICIARN\ras and ias servers
POLICIARN\allowed rodc password replication group
POLICIARN\denied rodc password replication group
POLICIARN\dnsadmins
POLICIARN\enterprise read-only domain controllers
POLICIARN\domain admins
POLICIARN\domain users
POLICIARN\domain guests
POLICIARN\domain computers
POLICIARN\domain controllers
POLICIARN\schema admins
POLICIARN\enterprise admins
POLICIARN\group policy creator owners
POLICIARN\read-only domain controllers
POLICIARN\dnsupdateproxy
POLICIARN\comp11

How can I assign to a folder this group permission from command line ?

root at domain-server2:/# chown root:"POLICIARN\comp11" /comp11
chown: invalid group: ‘root:POLICIARN\comp11’ /comp11

regards.