It doesn't have a Style Creator either, so unless you already have a Roland arranger that has that feature, you're going to be very limited with how you edit styles.

A $1000 "keyboard-less" arranger that does not at least have Style Assembly?

However, in the instrument's defence, I thought the selection of BK-7m styles I heard demo'd were very good indeed...certainly they sound much more detailed than on a G-70 or E-80/60/50, and far better than Prelude/GW-8.

Why they left off even a basic Style Creator/Editor is a mystery.

Ian