История страницы

use Bitrix\Main\EventManager;

$eventManager = EventManager::getInstance();
$eventManager->addEventHandler('boxberry.delivery', 'onOrderPlaces', 'setOrderPlacesEvent');

function setOrderPlacesEvent(Event $event): void
{
    $boxes = $event->getParameter('boxes');
    $boxes[0]['Weight'] = 1001;
    $event->setParameter('boxes', $boxes);
}