How to hide a section in the Bitrix trading catalog?

Question

1C-Bitrix

Good day!
For SEO promotion, you need to create additional pages with products. So that they are indexed by search engines, but were not visible in the public part of the site.
Tried to simply create the 3rd level in the directory. But in the end, all goods from the 3rd level merge into the 2nd.
For example:
Main category - Clothing
Subcategory - T-shirts
Sections in T-shirts for SEO - Basketball uniform, Football uniform, etc.
Accordingly, products from "Basketball uniform", where both leggings and shorts, merge into the subcategory "T-shirts" .
How to hide the 3rd level in the trade catalog? Or maybe there are other options.

Answer 1

Try setting the "INCLUDE_SUBSECTIONS" parameter to "N".