I am helping a friend consider migrating to Odoo from Sage for his small business. He doesn't have anything complicated and simply sells a service (no products). In Sage, he would put the service he would do in the Description, and the price, and how many square feet in the quantity. All I want to do is make Odoo stop requiring me to enter a product. How do I do that? I found sale_quote.py and I think that is the file I need to edit. I changed what I think is supposed to be required=true to required=false. I also edited the form view in Odoo (using Odoo 11), and I erased various things such as force_save="1", but nothing is working.
How do I go about disabling product requirement? To specify, this is in Sales > Orders > Quotations
