Enable secondary address line inside of checkout
Adding the secondary address line to the checkout component.
Purpose:
Adding the secondary address line, the checkout component will able to collect more information about shipping address or billing address of the customer.
In the cart page of your funnels, you need to enable the address line 2 to display inside of the checkout.
You can edit the label text of the secondary address line.
Finally you need to publish the cart page to see the changes reflected.