The functionality to make a line item or service mappable to the shop supplies ledger line. We offer Ubers to customers as a shuttle option and car washes as a courtesy to customers. We do not charge the customer for those services but I do want to it to show on the ticket the value that the customer is being given. I however also feel that those are not really a material cost but a job supplies related expense. So I would like to be able to add a service or line item that is not a labor, material or sublet cost that can be discounted to $0.00 so the customer can see what they are receiving but the expense category would be more accurate on my Ledger and Income Statement.