Adding project payments in Lazy Paper is a straightforward process designed for ease and accuracy. Within the Accountant Account, users can navigate to the Quotation List page and select the relevant project. By clicking the Action button and choosing Payment, users can view existing payments and add new ones. The system allows for categorization of payments, selection of subcontractors, and entry of invoice numbers, amounts, and payment dates. Users can also upload invoice files and add remarks. This organized approach ensures that all project payments are recorded accurately and are easily accessible for financial tracking.