How to add quantity control buttons?

Question

1C-Bitrix

Good day!
on the template of the detailed page of the product, it is required to add quantity control buttons (+ -) so that when each button is pressed, 1 is either added or subtracted
initially

Answer 1

Do you have a standard template? You need to enable "Allow quantity input" in the component settings (like this or something related to the quantity).
If you have something custom with your handlers for adding a product, then write these buttons yourself