You need your information in a form you can read on your LCD in front of your face, ALL the manufacturers publish electronic versions of the manual.

The difference between a defibrillator and an arranger is that a defibrillator is designed for ONE function. An arranger can be used a myriad different ways these days. SMF's, MP3's, synced audio loops, styles... OK, so your old Yamaha had more than 30 styles... big whup! It probably had a tiny fraction of the different options you have now. Multiple fingering modes, multiple splits, multiple insert effects, multiple ways do do the SAME thing!

A tutorial would be incomplete until it was the size of War and Peace!

Look, there are people that apply themselves, and figure out from a manual what can be achieved, and there are people that want to sit there and have it spoon fed to them, one tiny concept at a time. But those that choose the spoon fed system rarely grasp the concepts behind what they are doing, and rarely advance any further than the tutorial. And usually never use 90% of even what is explained to them.

Arrangers attract a HUGE range of players. From the noobiest of noobs, to the studio professional, used to using gear FAR more complex. How is any manufacturer expected to deliver the appropriate level of hand holding to ALL of them..?

The truth is, if you REALLY want to know how to do anything on any arranger, there already ARE resources where all their questions can be answered (here is one of them!). If anyone doesn't make us of all this, why is it the manufacturers' responsibility to give them a tutorial they are unlikely to use?