The arranger is pretty simple actually. I use it all the time. So I really don’t have a tutorial for you. But the set below on my sound cloud page is all the OT in arranger mode. In this recording I literally just push play and walk away from it and let the OT arranger do it’s thing. Hopefully it will give you a sense of what you can accomplish with it.

https://soundcloud.com/0bsrvr/0bsrvr-2013-live-set-preview