How to add arbitrary links to the menu in Bitrix?

Question

1C-Bitrix

The situation is this:
there is a menu that is 90% of the menu for the information block, but it should also have several links on the second level that lead to other pages of the same site.
with what can it be done?
code from _ext:

<?if(!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true) die();
$aMenuLinksExt = array();
$arSections = CCache::CIBlockSection_GetList(array("SORT" => "ASC", "ID" => "ASC", "CACHE" => array("TAG" => CCache::GetIBlockCacheTag(CCache::$arIBlocks[SITE_ID]["aspro_allcorp_content"]["aspro_allcorp_our-offers"][0]), "MULTI" => "Y")), array("IBLOCK_ID" => CCache::$arIBlocks[SITE_ID]["aspro_allcorp_content"]["aspro_allcorp_our-offers"][0], "ACTIVE" => "Y", "GLOBAL_ACTIVE" => "Y", "ACTIVE_DATE" => "Y"));
$arSectionsByParentSectionID = CCache::GroupArrayBy($arSections, array("MULTI" => "Y", "GROUP" => array("IBLOCK_SECTION_ID")));
$arItems = CCache::CIBlockElement_GetList(array("SORT" => "ASC", "ID" => "DESC", "CACHE" => array("TAG" => CCache::GetIBlockCacheTag(CCache::$arIBlocks[SITE_ID]["aspro_allcorp_content"]["aspro_allcorp_our-offers"][0]), "MULTI" => "Y")), array("IBLOCK_ID" => CCache::$arIBlocks[SITE_ID]["aspro_allcorp_content"]["aspro_allcorp_our-offers"][0], "ACTIVE" => "Y", "SECTION_GLOBAL_ACTIVE" => "Y", "ACTIVE_DATE" => "Y", "INCLUDE_SUBSECTIONS" => "Y"));
$arItemsBySectionID = CCache::GroupArrayBy($arItems, array("MULTI" => "Y", "GROUP" => array("IBLOCK_SECTION_ID")));

if($arSections){
  aspro::getSectionChilds(false, $arSections, $arSectionsByParentSectionID, $arItemsBySectionID, $aMenuLinksExt);
}
else{
  foreach($arItems as $arItem){
    $aMenuLinksExt[] = array($arItem["NAME"], $arItem["DETAIL_PAGE_URL"], array(), array("FROM_IBLOCK" => 1, "DEPTH_LEVEL" => 1));
  }
}

if($aMenuLinksExt){
  $aMenuLinks = array_merge($aMenuLinks, $aMenuLinksExt);
}
?>

the entire menu is made from an information block, but this menu item should have a link to another part of the site.
Thank you in advance for your help!

Answer 1

1. in template
   UPD.
   

   if($aMenuLinksExt){
     $aMenuLinks = array_merge($aMenuLinks, $aMenuLinksExt);
   }

   
   change the logic here. replace array_merge with more complex processing and insert your link not at the end, but where you need