Does it allow you to copy and paste? That's a pretty handy tool, there...

I think that Korg have got the best handle on style creation, allowing you to do it in a computer MIDI sequencer, then import easily to the arranger. No shortage of all the esoteric MIDI editing tools you would ever need.

But I feel they need one extra step... the ability to play the style WHILE it is still in the computer, as banging the files back and forth ('save' the style, transfer to the arranger, THEN get to listen if the edit actually worked, then re-edit the style, 'save', transfer to the arranger, listen to see if THAT worked, and so on and so forth ad nauseam ) is a total PITA.

Korg (and actually, all others too ) need to create a simple 'Style Player' software so that works in progress can be quickly checked as you edit them in place, IMO...