Rhodes Chroma Polaris

Hi,

I have 2 questions regarding the midi-mode.  

1. How do I get the Polaris to play in Unison-mode over midi?

I can control the Polaris with the midi-sequencer and it plays fine 
with only 2 oscilators. But when I set the Polaris in Unison-mode it 
still seems to be playing with only 2 oscilators?

If I set the synth in unison-mode and play the sound on the keyboard 
I can hear it in unison-mode so my guess is that this is has 
something to do with the Polais midi settings.

Chapter 10 of the Polaris User's Manual shows a number of  settings 
as how the Polaris responds to incoming MIDI messages. I have tried 
experimenting a bit but havnt managed to figure out why unison-mode 
dosent work over midi?

2. As I mentioned the Polaris works well with the sequencer but when 
I operate it from my masterkeyboard it has some echoe-effect. The 
polaris plays one note as I press the key and repeat it when I 
release.

Again something that probably has something to do with the 
midisettings, any advice about these issues would be kind.

Cheers/Greg