I work with a team of freelance website designers.
Actually I need to insert three different rates to the same line. I have changed the item name to Consultant name, and quantity to consultation charge, unit cost to conveyance charge, Discount to misc charges. We may have multiple consultants for a same contractor company (client) at the same period.
In summary, I need to add all my teammates, working for the same client at the same period in a single invoice with three charges, Consultations fee, Conveyance fee, and Misc fees and need the sum of the three charges.
I know it is complicated… but somehow I changed something in built.js (or some other files I dont remember) and was successfully got to add cost and quantity (only in the pdf).