Currently you cannot trigger a logical action from a signal processing state - this is a limitation we are aware of and have plans to resolve, but no timeline yet.
I'm not sure of your context, but a simple option might be to drive the mute object and GPO pin from the same param set. I can also think of a more involved workaround using async serial feedback and serial input to trigger the GPO param sets in response to a change to the mute state, but it's a little clunky..
probably it is the same request I received by one of our customers. We have the need to configure a GPI contact as to toggle between two parameter sets. I found that the toggle configuration of the GPI contact applies only to gains, not to parameter sets. Is that correct?
The aim is to drive a LED and a gain mute through a single GPI connected to a desktop mic.
Interesting, I have spent the last few days looking at similar topics for a future release..
Unfortunately there's no simple way to do this currently - There is a way if you use a couple of diodes and 2x GPI pins and 2xGPO pins but it's a bit clunky. If you want to try this let me know and I'll ping you a mail with some details..