How to make the transfer and selection of the parameter?

Question

PHP

Life threw Bitrix into the project, I dig into it and the question arose
There is a directory with the structure
*Clothes: boys / girls
*Shoes: boys / girls
*Textiles
So, if I set the size in shoes, such a cool topic appears with a choice of size, data transfer to the basket, etc. https://malishishop.ru/catalog/dlya_malchikov-s/p_...
In clothes, I set the size, this does not appear https://malishishop.ru/catalog/odezhda/pizhama_reima-2/
Tell me, please , in which direction to dig, where to look It is necessary that the clothes also have a choice of size

Answer 1

If you use standard components (and this is most likely), then you just need to add the "size" property in the catalog infoblock and then you should have them.
https://dev.1c-bitrix.ru/learning/course/index.php...