Correct, there is no editing. However, for so many musicians, just having good quality sounds styles and unlike the Yamaha's at this price point, a 16 track sequencer and 64 voice polyphony (Yamaha's in this range only have 32 voice) and until you get to the PSR1500 or PSR3000, you don't have sounds of this quality, you still get a lot of keyboard here for your money.
George Kaye
Kaye's Music Scene
Reseda, California