Is it possible to import CSV Bitrix with kits and kits?

Question

1C-Bitrix

There are 2000+ finished goods. Added the function of kits and sets.
Sets are essentially the same type for each category. How can I add sets of the same type to products?
PS I set up the export of goods (so that on its basis it was possible to understand how to create kits and sets for the product), but the test product is not in the general list.