We have one peculiar scenario i need to map it into PS module. We have one department called Design Checking Department where they check the design of tools where a few designers will be working. Once a sales order is created for a tool, the picture of the tool will be forwarded to designer for checking. We need to book the cost of designers like how much time he has taken for working on individual sales orders. In this process for designing we will be not using any materials. Please guide me how it can be done in PS.