Hmmm....Site categories plugin.... display page for logged in users only

I see that this plugin displays on the main blog. I only want logged in users to be able to view the categories.
I tried [loggedin] shortcode but there is nothing to wrap it around.
I tried Page Restrict plugin, but the categories still display.
I can't use Membership plugin bc not all members of the network are users of the main blog(1).
I can't use Privacy Plugin to require all users to have password for the main site bc I want non logged in users to be able to view it.
There is no shortcode yet.
Any other suggestions on how I can only let logged in users see this content?