You can touch and hold a drive mode button and drag it to a new position on the screen.
I'm not looking at my screen right now, but I think I dragged "Economy" over to the far left since I typically only use "Normal," "Excite" or "Slippery" (in the winter).
So when I'm in "Excite" mode and go back to the mode screen then "Normal," "Excite," "Slippery" and maybe "Deep" are visible, and I'd need to scroll to get to "Economy" which I rarely use.
It's easy to rearrange them until you find what works best for you.