More than 4 note polyphony?

[Bobpants]

Hello, I've just received my midi expander today and what I understand is that the max polyphony is 4 notes. Are there any plans to customise the max amounts? I wanted to use it with my Deepmind 6 to compose some sheet music into it, but I'm limited to the four note polyphony. 
So far I've just been inserting the chords and playing melodies manually.

Thanks!