Drupal commerce works as follows:
When I add a product to the cart, system creates new line item (of type: product)
I have several product types. Could I achieve, that product line items would be specific for each product type?
What I would like to achieve is, that I can manage fields in line item type separately for each product type. For now, I can manage fields (or manage displays) only generally for all product types (When I go to Store -> Configurations -> Line item types -> Product)