Karabiner key mapping configuration for Microsoft Ergonomic Keyboard on MacOS

karabiner-ms-ergonomic.json

{
    "profiles": [
        {
            "complex_modifications": {
                "rules": [
                    {
                        "description": "Map Microsoft Ergonomic keyboard lock button",
                        "manipulators": [
                            {
                                "from": {
                                    "key_code": "l",
                                    "modifiers": {
                                        "mandatory": ["left_option"],
                                        "optional": ["any"]
                                    }
                                },
                                "to": [
                                    {
                                        "consumer_key_code": "al_terminal_lock_or_screensaver"
                                    }
                                ],
                                "type": "basic"
                            }
                        ]
                    },
                    {
                        "description": "Map Microsoft Ergonomic keyboard search button to spotlight",
                        "manipulators": [
                            {
                                "from": {
                                    "key_code": "f21",
                                    "modifiers": {
                                        "mandatory": ["right_shift", "left_option"],
                                        "optional": ["any"]
                                    }
                                },
                                "to": [
                                    {
                                        "apple_vendor_keyboard_key_code": "spotlight"
                                    }
                                ],
                                "type": "basic"
                            }
                        ]
                    },
                    {
                        "description": "Map Microsoft Ergonomic keyboard screenshot (selection) button",
                        "manipulators": [
                            {
                                "from": {
                                    "key_code": "s",
                                    "modifiers": {
                                        "mandatory": ["left_shift", "left_option"],
                                        "optional": ["any"]
                                    }
                                },
                                "to": [
                                    {
                                        "key_code": "4",
                                        "modifiers": ["left_command", "left_shift"]
                                    }
                                ],
                                "type": "basic"
                            }
                        ]
                    },
                    {
                        "description": "Map Microsoft Ergonomic keyboard emoji button",
                        "manipulators": [
                            {
                                "from": {
                                    "key_code": "spacebar",
                                    "modifiers": {
                                        "mandatory": ["left_control", "left_command", "left_shift", "left_option"],
                                        "optional": ["any"]
                                    }
                                },
                                "to": [
                                    {
                                        "key_code": "e",
                                        "modifiers": ["fn"]
                                    }
                                ],
                                "type": "basic"
                            }
                        ]
                    }
                ]
            },
            "devices": [
                {
                    "identifiers": {
                        "is_keyboard": true,
                        "is_pointing_device": true,
                        "product_id": 2092,
                        "vendor_id": 1118
                    },
                    "ignore": false,
                    "simple_modifications": [
                        {
                            "from": { "key_code": "left_command" },
                            "to": [{ "key_code": "left_option" }]
                        },
                        {
                            "from": { "key_code": "left_option" },
                            "to": [{ "key_code": "left_command" }]
                        }
                    ]
                }
            ],
            "name": "Default profile",
            "selected": true,
            "simple_modifications": [
                {
                    "from": { "key_code": "caps_lock" },
                    "to": [{ "key_code": "escape" }]
                }
            ],
            "virtual_hid_keyboard": {
                "country_code": 0,
                "keyboard_type_v2": "ansi"
            }
        }
    ]
}