@Gustavo-Yrepá I just made a command with NirCMD into voicemeeter to change where the sound is going. Works pretty fine. But i'm still struggling with setting up everything to work with my Macrodroid app (I use it to automate a lot of things.

@Five, you should be able to use Bixby to flip any switch in your SmartThings devices. You can use these instructions to add your TRIGGERcmd commands as virtual SmartThings switches.