How to change the number of products in the Bitrix set?

Question

1C-Bitrix

There is a catalog element (product with trade offers) that has a set (additional products).

As on the detailed product page of the catalog complex component, in the "kit constructor" component, make the number of kit items ready to be added to the cart = 0.

That is, I have a main product and its add-ons, and by default at least one add-on should be selected, but I want the add-ons to be selected only on a user click.