One trick is to set a stereo limiter for the timbre you wanna shut off/on
make sure you have the threshold set correctly, or else it will make your sound sound bad, set it to its highest value (0)
correct parameters
Go to zone/control page, go to controller tab, set SW1/2 to "SW1/2 mod #__"
go to IFX
Set a stereo limiter (im pretty sure you will wanna do end of the chain, this is up for debate though) route your timbre(s) to it
set:
threshold 0
Gain adjust [db] -inf
SRC - anything, but set yours to SW1/2
(directly across)
Amt: +anything, i find 40 to be normal level, but you can adjust that to your own taste
Also you wont hear the effect unless you press SW1/2 (toggling off and on) so make sure you do that every time you change the value of the AMT
then bam!
You can also do with by setting an EQ to the beginning of the chain and setting the trim to 0 and the AMS to SW1/2 and have that raise it up by 100, but this doesn't work as well because you dont get complete control over the volume, wich a limiter will give you
hope that helps!
ALSO one other way! check this link it will tell you how to do this to the programs itself, but this will take up space, and probably make things less fun and easy
http://karma-lab.wikidot.com/korg-m3:sw ... in-a-combi
check method 1, this is also doable on the TEX