function group( $blockName )
    {
        if ( !isset( $this->BlockValues[$blockName] ) )
        {
            eZDebug::writeError( "Unknown group: '$blockName'", __METHOD__ );
            $ret = null;
            return $ret;
        }
        if ( isset( self::$injectedSettings[$this->FileName][$blockName] ) )
        {
            $ret = array_merge(
                $this->BlockValues[$blockName],
                self::$injectedSettings[$this->FileName][$blockName]
            );
        }
        else
        {
            $ret = $this->BlockValues[$blockName];
        }

        return $ret;
    }