I think that is what Buffy means? You can play F major in a full barre or a more "open" form. You can get away with only using 4 strings: Basically just bar the E & B strings, and use middle on the G string, ring on the D. That's the easiest form I know. Then later you can add the pinky into the mix. Keep practicing the full Barre. You'll get it over time.