karabiner.json

{
    "profiles": [
        {
            "name": "Default",
            "selected": true,
            "simple_modifications": [],
            "complex_modifications": {
                "parameters": {
                    "basic.simultaneous_threshold_milliseconds": 50,
                    "basic.to_delayed_action_delay_milliseconds": 500,
                    "basic.to_if_alone_timeout_milliseconds": 1000,
                    "basic.to_if_held_down_threshold_milliseconds": 500,
                    "mouse_motion_to_scroll.speed": 100
                },
                "rules": [
                    {
                        "description": "Change modifier keys only if Kinesis Freestyle 2 PC",
                        "manipulators": [
                            {
                                "type": "basic",
                                "from": {
                                        "key_code": "left_command"
                                },
                                "to": [
                                    {
                                    	"key_code": "left_option"
                                    }
                                ],
                                "conditions": [
                                    {
                                        "type": "device_if",
                                        "identifiers": [
                                            {
                                                "vendor_id": 2652,
                                                "product_id": 34050,
						"location_id": Please find the identifiers from Karibaner EventViewer
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "type": "basic",
                                "from": {
                                        "key_code": "left_option"
                                },
                                "to": [
                                    {
                                    	"key_code": "left_command"
                                    }
                                ],
                                "conditions": [
                                    {
                                        "type": "device_if",
                                        "identifiers": [
                                            {
                                                "vendor_id": 2652,
                                                "product_id": 34050,
						"location_id": Please find the identifiers from Karibaner EventViewer
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            }
        }
    ]
}