No way to really customize like you can when you order in person (ie. Add Mac sauce to a quarter pounder). For ice options in the drinks, there is only regular, extra and none, no option for lite ice. When I went to pick up on the screen after ordering it says available option for pick up:drive thru, but when I got there the only option I could choose is curbside. The app said chicken filet was unavailable but when i got there, they said they have the chicken filets for a crispy mcchicken.