How to upload 1C-Bitrix product attributes?

Question

1C-Bitrix

The 1C database contains such parameters as weight, height, width, length, product quality, new before, sale before, Color. These options have been added. When goods were shipped, these parameters were not created (they do not exist). Little knowledge of PHP and little knowledge of bitrix. So I understand you need to edit the shipment files, the only place where they are located. Is there any documentation about such things?
What tell me?
I tried to upload to a new directory but without success!