How to set a limit on the infoblock by the type of product being created in Bitrix?

Question

1C-Bitrix

Hello!
I appeal to everyone with heartache)
The situation is as follows: there is an exchange between Bitrix and 1C.
There are offers in 1C, but the customer wants to see them on the site in the form of ordinary simple goods .

Actually, nothing complicated, as it seemed to me at first glance. I simply remove the parent product information from the offers when they are created, and it becomes a simple product.

And then the fairy tale would end, but no - 1C stubbornly resists: it checks the box "The info block has trade offers" at the main information block of goods, and puts at the info block of offers that it is a dependent info block, that is, a catalog of offers

As a result, when creating a product, I observe that it becomes impossible to create a simple product in the offers infoblock - an offer is always created, albeit without a parent product.

How to be - I will not put my mind to it. It would be nice to block 1C's ability to change these checkboxes. Or somehow change the type of product to "simple product" through api, but I didn't manage to understand how it's done (

Help with advice, please.
Thanks in advance to all who responded!