See pg 22 of the 360 manual. I don't think there is a 1 fingered chord. There seem to be three 'modes' of fingered chords, but these all rely on a three-fingered chord. The Casio style chords CAN be one finger, but also 2,3, and 4 depending on what you want. If you want just major chords the Casio style may work for just playing the root.