Alesis Andromeda A6

Hi everyone,

Here I go with my questions straight away:

1. In the mixer mode is it possible to change MIDI channels from the 
PC sequencer and without touching Andromeda like it is possible to so 
with other synths?
2. The "VOICE OUTPUT" is switched off every time I change a sound, 
making me having to press the "VOICE OUTPUT" button in order to hear 
the sound from the 8 analogue outs. This is very annoying. Is there a 
way of keeping this switched on?
3. When I select another synth to be played in the PC sequencer and 
want to use Andromeda as a simple MIDI controller, Andromeda is not 
muted, but keeps on playing, hence I need to switch off the "VOICE 
OUTPUT" so I can only hear the other synth I am playing. Is there a 
way of muting Andromeda when playing other synths in the setup?

I hope someone can answer at least some of these questions.

Cheers in advance.

Mirza