[TYPO3-english] TCA override accessible only for specific ext.

[ondro]

Hey 


I have extend my sys_file_reference table

$tmp_bb_helpers_columns = array(

	'thumbnail' => array(
		'exclude' => 1,
		'label' => 'LLL:EXT:bb_helpers/Resources/Private/Language/locallang_db.xlf:tx_bbhelpers_domain_model_filereference.thumbnail',
		'config' => array (
			'type' => 'group',
			'internal_type' => 'file',
			'allowed' => $GLOBALS['TYPO3_CONF_VARS']['GFX']['imagefile_ext'],	
			'max_size' => $GLOBALS['TYPO3_CONF_VARS']['BE']['maxFileSize'],	
			'uploadfolder' => 'uploads/pics',
			'show_thumbs' => 1,	
			'size' => 1,	
			'minitems' => 0,
			'maxitems' => 1,
		)
	),
);

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTCAcolumns('sys_file_reference', $tmp_bb_helpers_columns);

$GLOBALS['TCA']['sys_file_reference']['palettes']['basicoverlayPalette'] = array(
	'showitem' => $GLOBALS['TCA']['sys_file_reference']['palettes']['basicoverlayPalette']['showitem'] .',--linebreak--,thumbnail',
	'canNotCollapse' => TRUE
);

is it possible to see this extended field only for specific extension. i.e. I have ext. news and dce installed and in both I can see this new field. I want to see it only for ext. dce

Is it possible to configure it in TCA?