Solution for 1C-Bitrix Site Management

It is necessary on the site 3kuhni.com on 1C-bitrix to make it possible for goods to create fields for entering data by users so that this data is transmitted to the cart.

You need to do as on this page:
3kuhni.ru/divany-dlya-kuk...

The user should be able to enter the name of the fabric manually on the page with the sofa (screenshot 1). These fabric names should be transferred to the basket so that I can see them when I receive the order.

You also need to make it possible to place upholstery options in the description of the sofa. That is, so that it was possible to place the necessary sections from the photo gallery. An example, on the same page (if you scroll below the description of the sofa):
3kuhni.ru/divany-dlya-kuk...

Please write the cost of the work and the terms.

I am ready to answer clarifying questions.