After install the module you can make blocks, views, panelcontent invisible for non friends without relationship with the ID=1.
You have to activate the php filter module from the drupal core.

Here is the code you have to fill in (maybe in the block visibility settings):

<?php
global $user_is_rtid1;
if ($user_is_ritd1 == "1") {
return TRUE;
}
else {
return FALSE;
}
?>

