[Samba] adding valid user to a home share

[Chris Smith]

What is the easiest way to allow specific users access to other users home 
shares?

Current config is:
=================
[homes]
        comment = Home Directories
        browseable = no
        read only = no
        valid users = %S
        dos filetimes = Yes
        guest ok = no
=================

Of course, I do want to continue to use the general [homes] share, but for 
some users to allow other than themselves (%S) access to their home shares. 
For example, allow jane to connect to john's home share as she needs access 
to his data.

Will a separate home share for these users overide the general [homes] share? 
Is there an easier way? Maybe some conditional syntax for valid users?

Thanks.

-- 
Chris