[Samba] cannot set right for unix group

[Klaus Hartnegg]

Hi,

The security tab of Windows does not accept unix groupnames,
although they do work in icacls.exe on the commandline.
It displays existing group rights, and allows to modify them,
but does not allow to add new rights for unix groups,
and the search function also does not list unix groups.
Is there a trick to make them work in the security tab?
I don't have OUs or AD-groups, this is classic PDC.

thanks,
Klaus