add preferences_section_header hook

program/steps/settings/edit_prefs.inc

@@ -51,6 +51,10 @@ function rcmail_user_prefs_form($attrib)
 
     $out = $form_start;
 
+    if(!empty($SECTIONS[$CURR_SECTION]['header'])) {
+        $out .= html::div(array('id' => 'preferences-header', 'class' =>'boxcontent'), $SECTIONS[$CURR_SECTION]['header']);
+    }
+
     foreach ($SECTIONS[$CURR_SECTION]['blocks'] as $class => $block) {
         if (!empty($block['options'])) {
             $table = new html_table(array('cols' => 2));

program/steps/settings/func.inc

@@ -1238,6 +1238,13 @@ function rcmail_user_prefs($current = null)
             $sections[$idx]['blocks'] = $data['blocks'];
     }
 
+    $data = $RCMAIL->plugins->exec_hook('preferences_section_header',
+        array('section' => $sect['id'], 'header' => '', 'current' => $current));
+
+    if(!empty($data['header'])) {
+        $sections[$idx]['header'] = $data['header'];
+    }
+
     return array($sections, $plugin['cols']);
 }