Piwik\DataTable::setMaximumDepthLevelAllowedAtLeast PHP Method

    public static function setMaximumDepthLevelAllowedAtLeast($atLeastLevel)
    {
        self::$maximumDepthLevelAllowed = max($atLeastLevel, self::$maximumDepthLevelAllowed);
        if (self::$maximumDepthLevelAllowed < 1) {
            self::$maximumDepthLevelAllowed = 1;
        }
    }

 public static function reloadConfig()
 {
     // for BC, we read the old style delimiter first (see #1067)Row
     $actionDelimiter = @Config::getInstance()->General['action_category_delimiter'];
     if (empty($actionDelimiter)) {
         self::$actionUrlCategoryDelimiter = Config::getInstance()->General['action_url_category_delimiter'];
         self::$actionTitleCategoryDelimiter = Config::getInstance()->General['action_title_category_delimiter'];
     } else {
         self::$actionUrlCategoryDelimiter = self::$actionTitleCategoryDelimiter = $actionDelimiter;
     }
     self::$defaultActionName = Config::getInstance()->General['action_default_name'];
     self::$columnToSortByBeforeTruncation = PiwikMetrics::INDEX_NB_VISITS;
     self::$maximumRowsInDataTableLevelZero = Config::getInstance()->General['datatable_archiving_maximum_rows_actions'];
     self::$maximumRowsInSubDataTable = Config::getInstance()->General['datatable_archiving_maximum_rows_subtable_actions'];
     DataTable::setMaximumDepthLevelAllowedAtLeast(self::getSubCategoryLevelLimit() + 1);
 }