How to add custom sections to the menu (Bitrix)?

Question

1C-Bitrix

In general, the situation is this: (I rack my brain all day)
There is a menu: it looks like this: (in this example, the section - Pillows and blankets - with subcategories displayed

What I need: the "Bedding" section goes without subcategories, but I want to insert links from filter, i.e. make pseudo subcategories....the question is how to do it?))

Answer 1

Course
Implementation via menu_ext