They are two different modalities. You can user the default transfer price to simplify the price loading by asigning an occupancy range, price and if this price is per pax or no
Or you can either use transfer prices by occupancy. If you load prices here it will take these prices instead of the default ones if the requested occupancy is loaded here. In the modality it will allow you to be more specific in the price loading, for excample in setting different prices per occupancy (the higher occupancy the cheaper it gets)
