There are lots of new Ketron arranger&modules videos on You Tube for SD-5 and XD3. Although it's great idea to finally put something like this on the net, it came a little late (SD-5 and XD-3 are on the market for years).
And that's not the biggest problem.
All videos have exactly the same name ( "Ketron XD3 Arranger Workstation Tutorial", and "Ketron SD-5 Arrange Workstation Tutorial") so there is no way to distinguish which one is first, second, .. and You don't have clue how much videos there are, or by what order to watch it.
U guess the only way is to download all videos (taking care not to get same video twice or missing one or two), to watch every one of them, and try to guess the order of recording.
I am sure simple decision like naming videos: "SD-5 Tutorioal Part 1/x" could save us lot's of trouble.