How to fix a fixed number of products in a set with 3 and several other questions on sets in Bitrix?

Question

1C-Bitrix

Hello.
Created a set of products. When you click on "create your own set", Bitrix allows you to select only 3 products. Where can I fix it? Version 15.5.6
Can I set my own template for displaying goods in a set and where? (displayed horizontally).
How it is possible to deduce only "to create the set"? display:none solves but js script works on click opens and closes "create your own set"

Answer 1

1) The composition of the set is not limited to joxi.ru/1A5WeyYhKxNoOm
2) In the component template, of course