AutoPipe Training

I am unfamiliar with AutoPIPE but am very familiar with AutoPlant as I model all of our piping systems. An Engineer who just started using AutoPipe came to me with a question regarding the .pxf files I send him. He is having troubles understanding the .pxf files and notes/boundaries (his words not mine) that are imported. He finds it easier to just re-model my piping off the isometric. I am looking for any specific training for using AutoPIPE with an imported .pxf file. I am also curious if I am modeling my pipeline the correct way so that it comes in with all the information the engineer requires. Any help with this is greatly appreciated. Again I am unfamiliar with AutoPIPE so I am not exactly understanding what he see's and what is causing the issues.