How to display news from a certain category on Bitrix?

Question

PHP

I did it as in this thread
dev.1c-bitrix.ru/support/forum/forum6/topic9508
But I didn't understand where to enter this section code.
That is, I do not need a list of categories, but all the news from the desired category.

Answer 1

1. Copy the news component to your space.
2. Add filtering by section id to the CIBlockElement::GetList method

"SECTION_ID" => "id нужной группы", 
"INCLUDE_SUBSECTIONS" => "Y",