I have tried to go with the keyboard and here is the problem:

1) I select style 01
2) I spend time to adjust the volume of each track or component of that style.
3) I save the style in one of the style registration banks.
4) I select a different style: 02
5) the volumes return to the default 02

What I want to do is simply the following:

1) Select style
2) Adjust volumes
3) select as many styles as possible
4) volumes stay constant regardless of what style I select.

The problem is that this is not my personal keyboard. But I use it in the weekend sometimes and this truly frustrates me.