Factoring fee

Please add an option to add factoring/quick pay automatically to all invoices. The option what is available now to add factoring fee is good but we have to click everytime to choose category and rate and then choose between dollar amount or percentage. An automatic percentage or dollar amount to all invoices will be a lot easy option for us. When entering payment, just by clicking add payment should add factoring payment automatically without clicking on category and dollar/percentage amount for companies who use factoring. Thanks