diff -Naurw moodle-clean/moodle/blocks/online_users/block_online_users.php moodle-live/blocks/online_users/block_online_users.php
--- moodle-clean/moodle/blocks/online_users/block_online_users.php	2008-03-03 12:10:53.000000000 +0000
+++ moodle-live/blocks/online_users/block_online_users.php	2009-01-19 11:02:38.000000000 +0000
@@ -8,7 +8,7 @@
 class block_online_users extends block_base {
     function init() {
         $this->title = get_string('blockname','block_online_users');
-        $this->version = 2007101509;
+        $this->version = 2009011900;
     }
 
     function has_config() {return true;}
@@ -28,6 +28,11 @@
             return $this->content;
         }
 
+        if(empty($CFG->block_online_users_showallrelated)){
+            $CFG->block_online_users_showallrelated=0;
+        }
+
+
         $timetoshowusers = 300; //Seconds default
         if (isset($CFG->block_online_users_timetosee)) {
             $timetoshowusers = $CFG->block_online_users_timetosee * 60;
@@ -62,6 +67,13 @@
                       $groupselect ";
             $order = "ORDER BY lastaccess DESC ";
             
+        } elseif($CFG->block_online_users_showallrelated){
+            
+            $select='SELECT u.id, u.username, u.firstname, u.lastname, u.picture, u.lastaccess ';
+            $from= 'FROM  '.$CFG->prefix.'user as u join '.$CFG->prefix.'role_assignments on userid=u.id join '.$CFG->prefix.'context on contextid='.$CFG->prefix.'context.id and contextlevel=50 ';
+            $where='WHERE u.lastaccess > '.$timefrom.' and instanceid='.$COURSE->id.' ';
+            $order='ORDER BY lastaccess DESC';
+            
         } else { // Course-level
             $courseselect = "AND ul.courseid = '".$COURSE->id."'";
             $select = "SELECT u.id, u.username, u.firstname, u.lastname, u.picture, max(ul.timeaccess) as lastaccess ";
diff -Naurw moodle-clean/moodle/blocks/online_users/lang/en_utf8/block_online_users.php moodle-live/blocks/online_users/lang/en_utf8/block_online_users.php
--- moodle-clean/moodle/blocks/online_users/lang/en_utf8/block_online_users.php	1970-01-01 01:00:00.000000000 +0100
+++ moodle-live/blocks/online_users/lang/en_utf8/block_online_users.php	2009-01-14 12:09:03.000000000 +0000
@@ -0,0 +1,5 @@
+<?php
+$string['showallrelated']         = 'Show all related';
+$string['configshowallrelated']         = 'Show any user who has a role in this a course regardless of which course they are online in';
+
+?>
\ No newline at end of file
diff -Naurw moodle-clean/moodle/blocks/online_users/settings.php moodle-live/blocks/online_users/settings.php
--- moodle-clean/moodle/blocks/online_users/settings.php	2007-12-19 17:38:49.000000000 +0000
+++ moodle-live/blocks/online_users/settings.php	2009-01-14 11:25:50.000000000 +0000
@@ -2,5 +2,7 @@
 
 $settings->add(new admin_setting_configtext('block_online_users_timetosee', get_string('timetosee', 'block_online_users'),
                    get_string('configtimetosee', 'block_online_users'), 5, PARAM_INT));
+$settings->add(new admin_setting_configcheckbox('block_online_users_showallrelated', get_string('showallrelated', 'block_online_users'),
+                   get_string('configshowallrelated', 'block_online_users'), '0'));
 
 ?>