Sharepoint Foundation 2013 Configure Search Navigation

Question

I am testing out the search feature of Foundation 2013 and I want to allow my users to refine their searches via Result Sources.  From the instructions that I have read I should be able to do this in the Global Search Results page that I created ->
Site Settings -> Search -> Search Settings.  It appears there should be a section for "Configure Search Navigation".  I do not have this option.  Is this something that is disabled in the Foundation edition of Sharepoint?
For reference here is what I was following for instructions.
http://en.share-gate.com/blog/sharepoint-2013-search-settings-and-search-box-drop-down-menu About halfway down the page it shows this configuration box.  I cannot see that on my Search Settings page at all.
I have successfully created a Result Source that does work, but I seemingly have no way of presenting that to the user.  The Navigation WebPart also relies on the "Configure Search Navigation" settings, which I can't see in my setup.
Suggestions?

Answer 1

Hello,
"Configure Search Navigation" is not present in SharePoint Foundation 2013, but it is still available
via SOM (and PowerShell, of course). Try this if this helps (full url of Search Center on my dev environment is http://dev/search):
using (var siteCollection = new SPSite("http://dev"))
using (var site = siteCollection.OpenWeb("search"))
    site.Navigation.SearchNav.AddAsFirst(
        new SPNavigationNode("Test", "http://dev"));
    site.Update();
Regards,
Michal