Bob is right about the editing ability of the Korg PA range of course the PA3X is the top of that range and has a sampler and is a little more complex than the boards below it. I have the baby being the PA500 which is classed a entry level pro arranger but it in itself is very flexible and very editable. Because you can edit almost everything my approach was this. The PA500 is very playable straight out of the box there is even an easy mode which satisfies those itchy fingers when you first get it. I took each section at a time and read about extensivly and sat at the PA with the manual in my hand and learn a section before moving on. Yes it takes a time but there are so many mix and matches that end results can be very pleasing. One key is patience just like when you first got a KN7000. I should have gone for the PA800 from the start which has a much broader spec and is also superior for live playing with a better sound engine.