nope,

i program the buttons where I WANT, how i want

i dont have to lug around a big keyboard to goto practice

i can take it on a plane as a carry on

i don't touch or use or wear out buttons on A4, or bust a key on the A5

and why be like the "others" and use what's given to me?

and i'll be one of the very few with such a setup

lovin it !!!