No. I'm talking about this:

Let's say that you were playing a preset style and then you went into a style on your USB. Pressing the EXIT button won't bring you back to the preset style. You would have to scroll around to find the style that you were playing. What if you couldn't remember which one it was?

A JUMP button would bring you right back to the previous style and tempo. You might even be able to freeze which parameters you would jump back to.

Beakybird