Index: trunk/core/units/custom_data/custom_data_config.php
===================================================================
diff -u
--- trunk/core/units/custom_data/custom_data_config.php	(revision 0)
+++ trunk/core/units/custom_data/custom_data_config.php	(revision 4016)
@@ -0,0 +1,75 @@
+<?php
+
+	$config	=	Array(
+					'Prefix'			=>	'',
+					
+					'Clones'			=>	Array(
+					
+												'u-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'PortalUserCustomData',
+																	'ParentPrefix'	=>	'u',
+																),
+																
+												'l-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'LinkCustomData',
+																	'ParentPrefix'	=>	'l',
+																),
+																
+												'n-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'NewsCustomData',
+																	'ParentPrefix'	=>	'n',
+																),
+																
+												'bb-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'TopicCustomData',
+																	'ParentPrefix'	=>	'bb',
+																),
+																
+												'p-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'ProductsCustomData',
+																	'ParentPrefix'	=>	'p',
+																),
+											),
+					
+					
+					'ItemClass'			=>	Array('class' => 'kDBItem', 'file' => '','build_event' => 'OnItemBuild'),
+					'ListClass'			=>	Array('class' => 'kDBList', 'file' => '','build_event' => 'OnListBuild'),
+					'EventHandlerClass'	=>	Array('class' => 'kDBEventHandler', 'file' => '', 'build_event' => 'OnBuild'),
+					'TagProcessorClass' =>	Array('class' => 'kDBTagProcessor', 'file' => '', 'build_event' => 'OnBuild'),
+					'AutoLoad'			=>	true,
+					
+					'Hooks'				=>	Array(
+												Array(
+													'Mode' => hAFTER,
+													'Conditional' => false,
+													'HookToPrefix' => 'm',
+													'HookToSpecial' => '*',
+													'HookToEvent' => Array('OnAfterConfigRead'),
+													'DoPrefix' => '',
+													'DoSpecial' => '',
+													'DoEvent' => 'OnCreateCustomFields',
+												),
+											),
+											
+					'IDField'			=>	'CustomDataId',
+					
+					'ParentTableKey'	=>	'ResourceId',
+					'ForeignKey'		=>	'ResourceId',
+					'AutoDelete'		=>	true,
+					'AutoClone'			=>	true,
+					
+					'CalculatedFields'	=>	Array(
+												''	=>	Array(),
+											),
+
+					'ListSQLs'			=>	Array('' => 'SELECT %1$s.* %2$s FROM %1$s'),
+					'ItemSQLs'			=>	Array('' => 'SELECT %1$s.* %2$s FROM %1$s'),
+					
+					'Fields'			=>	Array(
+											    'CustomDataId' => Array(),
+											    'ResourceId' => Array('type' => 'int', 'not_null' => 1, 'default' => 0),
+											),
+				);
+
+	
+?>
\ No newline at end of file
Index: trunk/kernel/units/custom_data/custom_data_config.php
===================================================================
diff -u
--- trunk/kernel/units/custom_data/custom_data_config.php	(revision 0)
+++ trunk/kernel/units/custom_data/custom_data_config.php	(revision 4016)
@@ -0,0 +1,75 @@
+<?php
+
+	$config	=	Array(
+					'Prefix'			=>	'',
+					
+					'Clones'			=>	Array(
+					
+												'u-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'PortalUserCustomData',
+																	'ParentPrefix'	=>	'u',
+																),
+																
+												'l-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'LinkCustomData',
+																	'ParentPrefix'	=>	'l',
+																),
+																
+												'n-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'NewsCustomData',
+																	'ParentPrefix'	=>	'n',
+																),
+																
+												'bb-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'TopicCustomData',
+																	'ParentPrefix'	=>	'bb',
+																),
+																
+												'p-cdata'	=>	Array(
+																	'TableName'		=>	TABLE_PREFIX.'ProductsCustomData',
+																	'ParentPrefix'	=>	'p',
+																),
+											),
+					
+					
+					'ItemClass'			=>	Array('class' => 'kDBItem', 'file' => '','build_event' => 'OnItemBuild'),
+					'ListClass'			=>	Array('class' => 'kDBList', 'file' => '','build_event' => 'OnListBuild'),
+					'EventHandlerClass'	=>	Array('class' => 'kDBEventHandler', 'file' => '', 'build_event' => 'OnBuild'),
+					'TagProcessorClass' =>	Array('class' => 'kDBTagProcessor', 'file' => '', 'build_event' => 'OnBuild'),
+					'AutoLoad'			=>	true,
+					
+					'Hooks'				=>	Array(
+												Array(
+													'Mode' => hAFTER,
+													'Conditional' => false,
+													'HookToPrefix' => 'm',
+													'HookToSpecial' => '*',
+													'HookToEvent' => Array('OnAfterConfigRead'),
+													'DoPrefix' => '',
+													'DoSpecial' => '',
+													'DoEvent' => 'OnCreateCustomFields',
+												),
+											),
+											
+					'IDField'			=>	'CustomDataId',
+					
+					'ParentTableKey'	=>	'ResourceId',
+					'ForeignKey'		=>	'ResourceId',
+					'AutoDelete'		=>	true,
+					'AutoClone'			=>	true,
+					
+					'CalculatedFields'	=>	Array(
+												''	=>	Array(),
+											),
+
+					'ListSQLs'			=>	Array('' => 'SELECT %1$s.* %2$s FROM %1$s'),
+					'ItemSQLs'			=>	Array('' => 'SELECT %1$s.* %2$s FROM %1$s'),
+					
+					'Fields'			=>	Array(
+											    'CustomDataId' => Array(),
+											    'ResourceId' => Array('type' => 'int', 'not_null' => 1, 'default' => 0),
+											),
+				);
+
+	
+?>
\ No newline at end of file
Index: trunk/core/kernel/utility/unit_config_reader.php
===================================================================
diff -u -r4000 -r4016
--- trunk/core/kernel/utility/unit_config_reader.php	(.../unit_config_reader.php)	(revision 4000)
+++ trunk/core/kernel/utility/unit_config_reader.php	(.../unit_config_reader.php)	(revision 4016)
@@ -127,6 +127,10 @@
 
 				$this->ParseConfigClones($clone_prefix);
 			}
+			if (!$prefix) {
+				// configs, that used only for cloning & not used ifself
+				unset($this->configData[$prefix]);
+			}
 		}
 
 		function ParseConfigs()