Way to turn of Traktor Audio6' Direct Thru mode? Can you map to a bash command?

I want to turn my Traktor A6 Direct Thru. The commands in bash are.

amixer -c T6 cset name='Direct Thru Channel A'  on
amixer -c T6 cset name='Direct Thru Channel A'  off
amixer -c T6 cset name='Direct Thru Channel B'  on
amixer -c T6 cset name='Direct Thru Channel B'  off

Tried setting those in my custom keyboard file, but I guess it only controls MIXXX. I could set them globally, but I don’t want to do that really. It would also be great if you could make custom buttons in the MIXXX interface to send commands to the shell.

There is no way to control this hardware switch in Mixxx, but you can toggle the software pass through mode in Mixxx.

Yes, but it would be easy to just implement some configurable buttons that send commands to the shell. What do you mean by software pass through? The Traktor A6 passes the audio from the vinyl through itself you can’t do that in Mixxx. Would just be nice to have a button. Is there a section for feature requests?