Index: branches/5.3.x/core/units/helpers/cron_helper.php
===================================================================
diff -u -N -r15483 -r15698
--- branches/5.3.x/core/units/helpers/cron_helper.php	(.../cron_helper.php)	(revision 15483)
+++ branches/5.3.x/core/units/helpers/cron_helper.php	(.../cron_helper.php)	(revision 15698)
@@ -202,26 +202,28 @@
 	 */
 	public function initUnit($prefix, $field_prefix = '')
 	{
-		$virtual_fields = $this->Application->getUnitOption($prefix, 'VirtualFields', Array ());
+		$config = $this->Application->getUnitConfig($prefix);
 
-		$virtual_fields[$field_prefix . 'CommonHints'] = Array (
-			'type' => 'string',
-			'formatter' => 'kOptionsFormatter', 'options' => $this->getOptions(self::COMMON),
-			'default' => ''
-		);
+		$config->addVirtualFields(Array (
+			$field_prefix . 'CommonHints' => Array (
+				'type' => 'string',
+				'formatter' => 'kOptionsFormatter', 'options' => $this->getOptions(self::COMMON),
+				'default' => ''
+			),
+		));
 
 		foreach ($this->fieldTypes as $field_type) {
 			$field_name = $this->_getFieldNameByType($field_type, $field_prefix);
-			$virtual_fields[$field_name] = Array ('type' => 'string', 'max_len' => 30, 'default' => '*');
 
-			$virtual_fields[$field_name . 'Hints'] = Array (
-				'type' => 'string',
-				'formatter' => 'kOptionsFormatter', 'options' => $this->getOptions($field_type),
-				'default' => ''
-			);
+			$config->addVirtualFields(Array (
+				$field_name => Array ('type' => 'string', 'max_len' => 30, 'default' => '*'),
+				$field_name . 'Hints' => Array (
+					'type' => 'string',
+					'formatter' => 'kOptionsFormatter', 'options' => $this->getOptions($field_type),
+					'default' => ''
+				),
+			));
 		}
-
-		$this->Application->setUnitOption($prefix, 'VirtualFields', $virtual_fields);
 	}
 
 	/**