You might want to read the Samba 3 Howto & Reference guide. On some distro's it is in a samba.doc package. Or you can find it at the samba.org website. I don't know if the particular feature you want can be mapped to a samba share. Often, if you are a member of the Network Administrator's group and logged in, you can use the same policy tools from a windows machine to set policies.
Look in Chapter 26. System and Account Policies.