Dave Smith Instruments SYNTHESIZERS

I'm helping betatest the Evovler PC Editor and I'm very confused 
about the sequencer. 

I made a suggestions that it would be nice to be able to mute any of 
the 4 sequencer rows. Dave was asked how best to do this and he 
replied:

"On the seq mute, one way to do it easily is to just turn off the seq 
destination. You can just toggle the destination on/off, and it will 
work fine. The only other catch is you would have to check the 4 
modulation source/destinations to see if a sequence is also used in 
any of them as a source, and if so, it's destination would also have 
to be toggled."

I'm trying to do this manually on the evolver but I still hear the 
sequencer when I set all 4 sequencer and mod destinations to RST. I'm 
using factory patch A001 to test this. 

I've not programmed the sequencer before... so, I'm just not sure 
what to do. 

Thanks,

Sayer