To declare trainer's costs, you must create a Trainer sheet (see Creating a Respondent Sheet section) and add a price in it.
Note: In this screen, you define a trainer based on his training course. In this case, you must configure the Responder pricing template from Setup > Training parameters > Pricing > Responder pricing template to be able to use this function.
Once these parameters filled in, go back to the Part > Response Cost tab if necessary to check and refine the prices.