OK, the question didn’t leave me alone, i worked out a solution for the problem and tested it successfully!
You need two scenes:
Scene 1 = mute CH1, unmute CH2.
Scene 2 = mute CH2, unmute CH1.
– in these scenes, all recall filters are first set to “Block All”.
– then you allow here only the mutes of the two inputs.
So far then quite normal
Then you define a softkey in both scenes, e.g. softkey 11:
– you give the command to this key in scene1: “Scene controls/Specific Scene Recall/Scene2”
– and in scene2 the command: “Scene controls/Specific Scene Recall/Scene1”
and don’t forget to also allow softkey 11 calls in both scenes!
So you simply made a toggle on Softkey11, which switches both mutes reliably 😉
So it works!
But be careful!
If a new firmware version comes – or you have changed the number of busses or the number of inputs in the system (e.g. if a DX168 has been added), then all recall filters have to be checked !!!
Otherwise you might switch functions you don’t want to have, because the scene filters only consider the current configuration when saving the scenes!
Translated with http://www.DeepL.com/Translator