support for RFXcom Mertik fireplace

I have an RFXcom to control my Mertik fireplace. Domoticz fully supports this: on/off, higher/lower flame etc. See below for a screenshot of how the switch shows up in Domoticz.

Using edomoticz, this only shows up as a simple on/off switch, which means I can only run the fireplace at full throttle or not at all when controlling it from Homekit.

It would be great if this accessory could be fully supported through edomoticz

    "ActTime" : 1641557265,
    "AstrTwilightEnd" : "18:48",
    "AstrTwilightStart" : "06:41",
    "CivTwilightEnd" : "17:24",
    "CivTwilightStart" : "08:06",
    "DayLength" : "07:58",
    "NautTwilightEnd" : "18:07",
    "NautTwilightStart" : "07:22",
    "ServerTime" : "2022-01-07 13:07:45",
    "SunAtSouth" : "12:45",
    "Sunrise" : "08:46",
    "Sunset" : "16:44",
    "app_version" : "2021.1",
    "result" : 
    [
        {
            "AddjMulti" : 1.0,
            "AddjMulti2" : 1.0,
            "AddjValue" : 0.0,
            "AddjValue2" : 0.0,
            "BatteryLevel" : 255,
            "CustomImage" : 10,
            "Data" : "Off",
            "Description" : "",
            "DimmerType" : "none",
            "Favorite" : 1,
            "HardwareDisabled" : false,
            "HardwareID" : 5,
            "HardwareName" : "RFXcom",
            "HardwareType" : "RFXCOM - RFXtrx433 USB 433.92MHz Transceiver",
            "HardwareTypeVal" : 1,
            "HaveDimmer" : false,
            "HaveGroupCmd" : false,
            "HaveTimeout" : false,
            "ID" : "000040",
            "Image" : "Fireplace",
            "IsSubDevice" : false,
            "LastUpdate" : "2022-01-07 12:32:23",
            "Level" : 0,
            "LevelInt" : 0,
            "MaxDimLevel" : 0,
            "Name" : "Haard",
            "Notifications" : "false",
            "PlanID" : "0",
            "PlanIDs" : 
            [
                0
            ],
            "Protected" : false,
            "ShowNotifications" : true,
            "SignalLevel" : "-",
            "Status" : "Off",
            "StrParam1" : "",
            "StrParam2" : "",
            "SubType" : "Mertik G6R-H4T1",
            "SwitchType" : "On/Off",
            "SwitchTypeVal" : 0,
            "Timers" : "false",
            "Type" : "Thermostat 3",
            "TypeImg" : "temperature",
            "Unit" : 0,
            "Used" : 1,
            "UsedByCamera" : false,
            "XOffset" : "0",
            "YOffset" : "0",
            "idx" : "32"
        }
    ],
    "status" : "OK",
    "title" : "Devices"
}

PatchworkBoy / homebridge-edomoticz

support for RFXcom Mertik fireplace #243