Here is another YouTube link. There are a few. What I find interesting about this arranger is the versatility of the touch pads. In this video it chow cases a small bit of that where pads can be used to trigger chords (which the arranger follows) and even a chord sequencer. So in essence it has a form of chord sequencing. Interesting stuff.
https://m.youtube.com/watch?v=CVfTQhv7TRUJim
At 2:35 in that video he shows articulations on that trumpet... Glad to see articulation are in the new soundset... Good job from Casio
The pads, which can assigned to all those different items combined with the touchscreen interface are what makes this instrument having the best interface... Less knobs more options...
( if you look at the montage, you see the same strategy, there are 4 lines of 8 buttons, that can be assigned to a lot of different functions..)