Karabiner modification - eject key mapped to f13, command-f13 sequence

zoom_audio_toggle_karabiner_modification.json

{
  "title": "Zoom audio toggle modification",
  "rules": [
    {
        "description": "Eject key triggers two keyboard shortcuts",
        "manipulators": [
            {
                "from": {
                    "consumer_key_code": "eject"
                },
                "to": [
                    {
                        "key_code": "a",
                        "modifiers" : ["command", "shift"]
                    },
                    { 
                        "key_code": "f13",
                        "modifiers" : ["command"]
                    }
                ],
                "type": "basic"
            }
        ]
    }]
}