Как вывести все новости из 4 разделов Битрикс

Всем привет. Есть кастомный компонент.. проблема в том что мне нужно из 4 категорий вывести все новости в один блок на сайте, но выводится только один из 4 айдишников. Как вывести всё сразу? Я думаю проблема не сложная.. просто я вообще не знаю php... помогите плиз. В кастомном компоненте такие файлы

component.php

    <?php if (!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED !== true) die();
    if (CModule::IncludeModule("iblock")) {
        $arSelect = array(
            "ID",
            "IBLOCK_ID",
            "PROPERTY_ATTR_SHORT_TITLE",
            "PROPERTY_ATTR_MEMBER_RUS",
            "PROPERTY_ATTR_MEMBER_DE",
            "DETAIL_PAGE_URL"
        );

        $arFilter = array(
            "IBLOCK_ID" => array(2,3,15,16),
            "ACTIVITY" => "Y",
            "!PROPERTY_ATTR_SHORT_TITLE" => false,
            array(
                "LOGIC" => "OR",
                array("!PROPERTY_ATTR_MEMBER_RUS" => false),
                array("!PROPERTY_ATTR_MEMBER_DE" => false)
            )
        );

        $arOrder = array(
            "PROPERTY_ATTR_SHORT_TITLE" => "ASC",
        );

        $res = CIBlockElement::GetList($arOrder, $arFilter, false, array("nPageSize" => 10, "bShowAll" => false), $arSelect);

        while ($ob = $res->GetNextElement()) {
            $arFields = $ob->GetFields();

    //        if (!empty($arFields["PROPERTY_ATTR_MEMBER_RUS_VALUE"]) || (!empty($arFields["PROPERTY_ATTR_MEMBER_DE_VALUE"]))) {

            // Формируем массив немецких партнеров
            foreach ($arFields["PROPERTY_ATTR_MEMBER_DE_VALUE"] as &$deMember) {
                $deMemberRes = CIBlockElement::GetByID($deMember);
                while ($de = $deMemberRes->GetNextElement())
                    $deMember = $de->GetFields();

                $deMember["DETAIL_PICTURE"] = CFile::GetPath($deMember["DETAIL_PICTURE"]);
            }

            // Формируем массив российских партнеров
            foreach ($arFields["PROPERTY_ATTR_MEMBER_RUS_VALUE"] as &$deMember) {
                $deMemberRes = CIBlockElement::GetByID($deMember);
                while ($de = $deMemberRes->GetNextElement())
                    $deMember = $de->GetFields();

                $deMember["DETAIL_PICTURE"] = CFile::GetPath($deMember["DETAIL_PICTURE"]);
            }

            $arResult["ITEMS"][] = $arFields;

            $arResult["NAV_STRING"] = $res->GetPageNavStringEx(
                $navComponentObject,
                "",
                "forum",
                true,
                $this,
                array(
                    "PAGER_SHOW_ALL" => "N"
                )
            );
        }


    //    }

    //    $num = 10;
    //    $page = $_GET['page'];
    //    $posts = count($arResult["ITEMS"]);
    //    $total = intval(($posts - 1) / $num) + 1;
    //    $page = intval($page);
    //
    //    if(empty($page) or $page < 0) $page = 1;
    //        if($page > $total) $page = $total;
    //
    //    $start = $page * $num - $num;
    }
    $this->IncludeComponentTemplate();

есть index.php

    <?
    require($_SERVER["DOCUMENT_ROOT"]."/bitrix/header.php");
    $APPLICATION->SetTitle("Partnerschaften");
    ?><?
    $GLOBALS['arrFilter_partners'] = array("!PROPERTY_ATTR_MEMBER_RUS"=>false);
    ?>


    <?$APPLICATION->IncludeComponent(
        "divier:partnerschaften", 
        ".default", 
        array(
            "CACHE_TIME" => "3600",
            "CACHE_TYPE" => "A",
            "IBLOCK_ID" => array(
                0 => "2",
                1 => "3",
                2 => "15",
                3 => "16",
            ),
            "IBLOCK_TYPE_ID" => "content_germ",
            "COMPONENT_TEMPLATE" => ".default"
        ),
        false
    );?>


    <?//$APPLICATION->IncludeComponent(
    //  "bitrix:news.list",
    //  "part_a",
    //  array(
    //      "DISPLAY_DATE" => "Y",
    //      "DISPLAY_NAME" => "Y",
    //      "DISPLAY_PICTURE" => "Y",
    //      "DISPLAY_PREVIEW_TEXT" => "Y",
    //      "AJAX_MODE" => "Y",
    //      "IBLOCK_TYPE" => "content_germ",
    //      "IBLOCK_ID" => array(
    //          0 => "2",
    //          1 => "3",
    //          2 => "15",
    //          3 => "16",
    //      ),
    //      "NEWS_COUNT" => "20",
    //      "SORT_BY1" => "ACTIVE_FROM",
    //      "SORT_ORDER1" => "DESC",
    //      "SORT_BY2" => "SORT",
    //      "SORT_ORDER2" => "ASC",
    //      "FILTER_NAME" => "",
    //      "FIELD_CODE" => array(
    //          0 => "",
    //          1 => "ATTR_MEMBER_RUS",
    //          2 => "ATTR_MEMBER_DE",
    //          3 => "ATTR_SHORT_TITLE",
    //          4 => "",
    //      ),
    //      "PROPERTY_CODE" => array(
    //          0 => "",
    //          1 => "ATTR_MEMBER_RUS",
    //          2 => "ATTR_MEMBER_DE",
    //          3 => "ATTR_SHORT_TITLE",
    //          4 => "",
    //      ),
    //      "CHECK_DATES" => "Y",
    //      "DETAIL_URL" => "",
    //      "PREVIEW_TRUNCATE_LEN" => "",
    //      "ACTIVE_DATE_FORMAT" => "d.m.Y",
    //      "SET_TITLE" => "Y",
    //      "SET_BROWSER_TITLE" => "Y",
    //      "SET_META_KEYWORDS" => "Y",
    //      "SET_META_DESCRIPTION" => "Y",
    //      "SET_LAST_MODIFIED" => "Y",
    //      "INCLUDE_IBLOCK_INTO_CHAIN" => "Y",
    //      "ADD_SECTIONS_CHAIN" => "Y",
    //      "HIDE_LINK_WHEN_NO_DETAIL" => "Y",
    //      "PARENT_SECTION" => "",
    //      "PARENT_SECTION_CODE" => "",
    //      "INCLUDE_SUBSECTIONS" => "Y",
    //      "CACHE_TYPE" => "A",
    //      "CACHE_TIME" => "3600",
    //      "CACHE_FILTER" => "Y",
    //      "CACHE_GROUPS" => "Y",
    //      "DISPLAY_TOP_PAGER" => "Y",
    //      "DISPLAY_BOTTOM_PAGER" => "Y",
    //      "PAGER_TITLE" => "Новости",
    //      "PAGER_SHOW_ALWAYS" => "Y",
    //      "PAGER_TEMPLATE" => "",
    //      "PAGER_DESC_NUMBERING" => "Y",
    //      "PAGER_DESC_NUMBERING_CACHE_TIME" => "36000",
    //      "PAGER_SHOW_ALL" => "Y",
    //      "PAGER_BASE_LINK_ENABLE" => "Y",
    //      "SET_STATUS_404" => "Y",
    //      "SHOW_404" => "Y",
    //      "MESSAGE_404" => "",
    //      "PAGER_BASE_LINK" => "",
    //      "PAGER_PARAMS_NAME" => "arrPager",
    //      "AJAX_OPTION_JUMP" => "N",
    //      "AJAX_OPTION_STYLE" => "Y",
    //      "AJAX_OPTION_HISTORY" => "N",
    //      "AJAX_OPTION_ADDITIONAL" => "",
    //      "COMPONENT_TEMPLATE" => "part_a",
    //      "STRICT_SECTION_CHECK" => "N",
    //      "FILE_404" => ""
    //  ),
    //  false
    //);?>







    <?require($_SERVER["DOCUMENT_ROOT"]."/bitrix/footer.php");?>

и вывод в template.php

    <?
    if (!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED !== true) die();

    ?>
    <div class="container">
        <div class="events_header">
            <div>Veranstaltung</div>
            <div>Deutsche Partner</div>
            <div>Russische Partner</div>
        </div>
        <div class="events">
        <? foreach ($arResult["ITEMS"] as $item): ?>

    <?// print_r($item) ?>
            <div class="event">
                <div class="name"><a href="<?= $item["DETAIL_PAGE_URL"] ?>"><?= $item["PROPERTY_ATTR_SHORT_TITLE_VALUE"] ?></a></div>
                <div class="partners">
                    <div class="germany">
                        <? foreach ($item["PROPERTY_ATTR_MEMBER_DE_VALUE"] as $deMember): ?>
                            <div class="partner">
                                <a href="<?= $item["DETAIL_PAGE_URL"] ?>">
                                    <img src="<?= $deMember["DETAIL_PICTURE"] ?>" alt="<?= $item["PROPERTY_ATTR_SHORT_TITLE_VALUE"] ?>">
                                    <span>
                                        <?= $deMember["NAME"] ?>
                                    </span>
                                </a>
                            </div>
                        <? endforeach; ?>
                    </div>
                    <div class="russia">
                        <? foreach ($item["PROPERTY_ATTR_MEMBER_RUS_VALUE"] as $ruMember): ?>
                            <div class="partner">
                                <a href="<?= $item["DETAIL_PAGE_URL"] ?>">
                                    <img src="<?= $ruMember["DETAIL_PICTURE"] ?>" alt="<?= $item["PROPERTY_ATTR_SHORT_TITLE_VALUE"] ?>">
                                    <span>
                                        <?= $ruMember["NAME"] ?>
                                    </span>
                                </a>
                            </div>
                        <? endforeach; ?>
                    </div>
                </div>
            </div>
        <? endforeach; ?>
        </div>
    </div>
    <?=$arResult["NAV_STRING"]?>