I am now planning my x-country IFR training flight. I have planned for 3 different airports, 3 different approaches, 2 towered, 1 no tower, and was wondering how to file. Do I need to full stop at each one and file new IFR flt. plan for each leg or can I file one IFR flt. plan that has all 3 airports, do touch/go (or bathroom pit stop) and full stop land at last airport. I understand about 250 nm total and 50nm from origin and the different types of approaches but am wondering how ATC deals with stops on a route. My CFII is gone for two weeks and left me to put together a plan for when he returns.