It’s a matter of when you press the modifier keys, unfortunately.
You have to press Alt + Shift before you click on the Input or Output field of one of the channels. After the click you can release the keys and select a new input or output.
It’s a matter of when you press the modifier keys, unfortunately.
You have to press Alt + Shift before you click on the Input or Output field of one of the channels. After the click you can release the keys and select a new input or output.