Thank you for adding this device. I just tested it.
Most of the commands work well.
"Toggle Mute" mutes the amp. By clicking the button the 2nd time nothing happens. I assigned "Mute on" an "Mute off" to the mute button. This muted the amp for a moment end then unmuted it. Is there another solution?
Here https://techsupport.cambridgeaudio.com/hc/en-us/articles/360000271837-EDGE-A-RS232-Codes
you can find on page 3 the different sources you can activate on this amp. To set up