Conserving permissions on samba share

[Alain JUPIN <ajupin@jupin.net>]

Hi all,

I have a shared folder (shared by samba on debian lenny), accessible from windows clients in which I have a folder example and his subfolders with the following :
example             drwxr-x---     proprio:users
   |-dossier1       drwxrwx---     proprio:group1
   |-dossier2       drwxrwx---     proprio:group2
   |-dossier3       drwxrwx---     proprio:group3

I want to duplicate (copy, paste and rename) this folder and want that the rights of the new folder (and his subfolders) are the same that the original folder.

Actually if I copy past and rename, I have : 
newfolder           drwxr-x---     proprio:users
   |-dossier1       drwxrwxr-x     proprio:users
   |-dossier2       drwxrwxr-x     proprio:users
   |-dossier3       drwxrwxr-x     proprio:users
 
How can I duplicate a folder (and his subfolders) without resetting the permissions (from windows client of course) ?
Is it possible ?

Thanks a lot for your help

Alain (and sorry for my poor english)