This doesn't really help.  By way of background, I recently migrated my client from QB Desktop to QBO.  The customer list is all screwed up, and the billing address now incorrectly includes the first name of the primary contact as the first line above the company name, whereas in QBDT it is just company name and address.   It appears we are going to have to painstakingly go in and edit every single customer's details to fix this.  But in the meantime, and for that matter for any other reason, my client ought to be able to manually edit this field when creating an invoice.  So the problem remains a problem, and unsolved.