Rule - Karabiner-Elements -Hold a Key to Execute Right Click Menu Item.json

{ "title": "Rules for Karabiner-Elements | Tested Version 12.10.0",
  "rules": [
     { "description": "Rules for Karabiner-Elements - Hold a Key to Execute Right Click Menu Item",
       "manipulators": [
        {"from": { "key_code": "my_key" },
        "parameters": {"basic.to_if_alone_timeout_milliseconds": 300,
        "basic.to_if_held_down_threshold_milliseconds": 500},
        "to_if_alone": [
        {"key_code": "my_key"
}],
          "to_if_held_down":[


                 {
"pointing_button": "button2"
}



],
          "type": "basic",
    "conditions": [
        {
            "type": "frontmost_application_if",
            "bundle_identifiers": [
                "^net\\.telestream\\.screenflow9$"
            ]
        }
    ]
                }
            ]
        }
    ]
}