In RT you can allow only people from a certain group to see a Callback, e.g:


my $group = new RT::Group($session{'CurrentUser'});
$group->LoadUserDefinedGroup('My_Group');
if ($group->HasMemberRecursively($session{'CurrentUser'}->PrincipalObj)) {
$toptabs->{'My_Callback'} = { title =>loc("My_Callback"),
path => "My_Callback/index.html" };

}