Lync 2013 client - Set people to "Blocked Contacts" relationship by default?

Question

We are in the process of implementing Lync Server 2013 (on-premises). We have already implemented one front end pool and one edge pool and successfully tested the basic functionality.  Now we are moving on to configuring the various policies based
on our requirements. One requirement that has come late in the planning is to prevent people from receiving IMs unless they explicitly allow people to IM them and to have the ability to whitelist IMs from people on an individual basis.  This is a feature
that was submitted as a requirement by way of our IT HelpDesk manager.
From what I gather, this could be accomplished if someone had the ability to set the default to the "Blocked Contacts" relationship for everyone instead of "Colleagues".  In my research on how to set that as the default, I found
a setting "ShowManagePrivacyRelationship" in Set-CsClientPolicy.  I created a new per-user client policy called "TEST" and applied it to myself.  Then I set ShowManagePrivacyRelationShip to $true via PowerShell on the TEST policy. 
However, even hours after making the change and signing out and back into the Lync 2013 client, I still don't see any change in functionality or new options.
Now, if I instead sign in with the Lync 2010 client, I can indeed see a "Manage Privacy Relationships" option in a drop-down near the right side of the client which takes me to a view where I can see and move "People in my company" and
"People in domains connected to my company" pseudo-contacts from the "Colleagues" relationship to "Blocked Contacts" and this accomplishes exactly what we want to do.
Where can I find the "Manage Privacy Relationship" setting in Lync 2013 client?  If there is no setting called that, how can I accomplish what I am trying to do using Lync 2013?
I would rather not use the Lync 2010 client, as our HelpDesk technicians all use Windows 8.1 and Office 2013.

Answer 1

David:
Yes, I have all of those relationships categories in Lync 2013.  What I am missing is the ability to set the rest of the organization to
Blocked Contacts by default.  I can do this with the Lync 2010 client using the same user login and the same Lync Server 2013 environment.
The following image demonstrates the location of the Manage Privacy Relationships option I would like to leverage in Lync 2013.  The image is of the Lync 2010 client.
https://www.dropbox.com/s/i0g83i9su9e5zox/Manage_Privacy_Relationships.png
If I click that Manage Privacy Relationships option, I end up on the following screen.  Note that there is a
People in my company object under Colleagues.
https://www.dropbox.com/s/kkatgtoexea7evt/Default_Privacy_Relationships.png
I am able to move that People in my company object to another relationship option.  I moved it to
Blocked Contacts, as you can see below.
https://www.dropbox.com/s/956kw0ih15uksgr/People_In_Company_Blocked.png
As you can see in the following image, after making this change if I do not have a person on my Contacts list, they are unable to IM me.  As you can see in my Lync 2013 client relationships list, no one is in my
Blocked Contacts list yet the Lync Test Account is being blocked due to the fact that I put People in my company there and haven't added them to my Contacts list.
https://www.dropbox.com/s/cue09wjj8tidbau/Blocked.png
After adding the Lync Test Account to my Contacts list, the Lync Test Account is able to IM me.
https://www.dropbox.com/s/nalju5ia980lc30/Unblocked.png
I hope these images help make clear that there seems to be a capability present in the Lync 2010 client that I am unable to locate in the Lync 2013 client.  I can't find this
Manage Private Relationships option anywhere in the Lync 2013 client or any other option that lets me see those People in my company and People in domains connected with my company objects.
With regards to the EnablePrivacyMode option, I am already aware of it and that is not what we are looking for.