diff -Nrup moodle_2.6de_search_conditions/question/editlib.php moodle/question/editlib.php
--- moodle_2.6de_search_conditions/question/editlib.php	2013-08-13 08:35:34.657340759 -0500
+++ moodle/question/editlib.php	2013-08-20 10:46:42.934348470 -0500
@@ -966,15 +966,48 @@ class question_bank_view {
     }
 
     protected function wanted_columns() {
-        $columns = array('checkbox', 'qtype', 'questionname', 'editaction',
-                'previewaction', 'moveaction', 'deleteaction', 'creatorname',
-                'modifiername');
+        global $CFG;
+        if (empty($CFG->questionbankcolumns)) {
+            $CFG->questionbankcolumns = 'checkbox,qtype,questionname,editaction,previewaction,moveaction,deleteaction,creatorname,modifiername';
+        }
+        foreach ( preg_split('/,/', $CFG->questionbankcolumns) as $fullname ) {
+            $column = self::get_column_type($fullname);
+            if ($column) {
+                $columns[] = $column;
+            }
+        }
         if (optional_param('qbshowtext', false, PARAM_BOOL)) {
             $columns[] = 'questiontext';
         }
         return $columns;
     }
 
+    protected function get_column_type($column_franken) {
+        if ( ! empty($this->knowncolumntypes[$column_franken]) ) {
+            return $this->knowncolumntypes[$column_franken];
+        }
+        list($plugintype, $pluginname_column) = core_component::normalize_component($column_franken);
+        list($pluginname, $columnname) = explode('|', $pluginname_column);
+        if ($plugintype == 'core' and is_null($pluginname)) {
+             $component = 'core';
+        } else {
+             $component = $plugintype.'_'.$pluginname;
+        }
+        
+        if ( empty($knowncolumntypes[$component]) ) {
+            require_once(core_component::get_plugin_directory($plugintype, $pluginname) . '/lib.php');
+            $function = $component.'_question_bank_column_types';
+            if (function_exists($function)) {
+                $this->knowncolumntypes[$component] = $function($this);
+            } else {
+                $errstrings = (object)array('franken'=>$column_franken, 'component'=>$column_franken, 'function'=>$component.'_question_bank_column_types');
+                print_error('columntypesundefined', 'question', null, $errstrings);
+            }
+        }
+        return $this->knowncolumntypes[$component][$columnname];
+    }
+
+
     /**
      * Specify the column heading
      *
@@ -1015,15 +1048,14 @@ class question_bank_view {
     protected function init_columns($wanted, $heading = '') {
         $this->visiblecolumns = array();
         $this->extrarows = array();
-        foreach ($wanted as $colname) {
-            if (!isset($this->knowncolumntypes[$colname])) {
-                throw new coding_exception('Unknown column type ' . $colname . ' requested in init columns.');
+        foreach ($wanted as $column) {
+            if (!self::get_column_type($column->get_name())) {
+                throw new coding_exception('Unknown column type ' . $column->get_name() . ' requested in init columns.');
             }
-            $column = $this->knowncolumntypes[$colname];
             if ($column->is_extra_row()) {
-                $this->extrarows[$colname] = $column;
+                $this->extrarows[$column->get_name()] = $column;
             } else {
-                $this->visiblecolumns[$colname] = $column;
+                $this->visiblecolumns[$column->get_name()] = $column;
             }
         }
         $this->requiredcolumns = array_merge($this->visiblecolumns, $this->extrarows);