Create a scene that sets the mute states the way that you want, and set the filters to only effect the “inputs/mute”, by allowing only mute and blocking everything else. Now map a softkey to load that scene.
If you want to “toggle” you will need another softkey to load another scene that inverts that state.
Certainly! To define a soft key that unmutes one channel and mutes all others, access the soft keys setup in your mixing console. Create a new soft key and assign the “mute” action to the channels you want to mute, and the “unmute” action to the channel you want to unmute. Link these actions if possible and save the setup. Test the soft key to ensure it’s working correctly. For precise instructions, consult the specific manual for your mixing console, as the process may vary depending on the model and manufacturer.