Countdown timer, im missing a reset function

this works but with flaws.. the goal is to set countdowntimer and have a resetbutton combined with the force button. (while forcing is set, timer will be set to reset) However, in this i tried but here isnt any way to stop the timer or set a new value to 0 to force timer to end.

How should you have done? build a function?

Summary
[
    {
        "id": "36b3d6632c413afb",
        "type": "tab",
        "label": "Flow 2",
        "disabled": false,
        "info": "",
        "env": []
    },
    {
        "id": "3ded2428931db138",
        "type": "Tasmota Switch",
        "z": "36b3d6632c413afb",
        "broker": "e2ab6a5a844ef0f2",
        "device": "TAS_motorv",
        "name": "Heater",
        "outputs": 1,
        "uidisabler": false,
        "fullTopic": "",
        "cmndPrefix": "",
        "statPrefix": "",
        "telePrefix": "",
        "qos": 1,
        "retain": false,
        "x": 370,
        "y": 240,
        "wires": [
            [
                "af619c4cc5014b86"
            ]
        ]
    },
    {
        "id": "7d01ede34d141d6c",
        "type": "ui_button",
        "z": "36b3d6632c413afb",
        "name": "",
        "group": "c24e4a9c.e31a68",
        "order": 0,
        "width": 0,
        "height": 0,
        "passthru": false,
        "label": "pushbutton, start heater 30min",
        "tooltip": "obs",
        "color": "",
        "bgcolor": "",
        "className": "",
        "icon": "",
        "payload": "",
        "payloadType": "str",
        "topic": "topic",
        "topicType": "msg",
        "x": 170,
        "y": 120,
        "wires": [
            [
                "f32dc433fd419a39"
            ]
        ]
    },
    {
        "id": "b59d7a4040054842",
        "type": "debug",
        "z": "36b3d6632c413afb",
        "name": "",
        "active": false,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 650,
        "y": 80,
        "wires": []
    },
    {
        "id": "4a445d20cccddd8f",
        "type": "ui_text",
        "z": "36b3d6632c413afb",
        "group": "c24e4a9c.e31a68",
        "order": 1,
        "width": 0,
        "height": 0,
        "name": "",
        "label": "Minutes left:",
        "format": "{{msg.payload}}",
        "layout": "col-center",
        "className": "",
        "x": 650,
        "y": 120,
        "wires": []
    },
    {
        "id": "f32dc433fd419a39",
        "type": "countdown",
        "z": "36b3d6632c413afb",
        "name": "",
        "topic": "",
        "payloadTimerStart": "true",
        "payloadTimerStartType": "bool",
        "payloadTimerStop": "false",
        "payloadTimerStopType": "bool",
        "timer": "30",
        "resetWhileRunning": false,
        "setTimeToNewWhileRunning": true,
        "startCountdownOnControlMessage": false,
        "minuteCounter": true,
        "x": 390,
        "y": 120,
        "wires": [
            [
                "3ded2428931db138"
            ],
            [
                "b59d7a4040054842",
                "4a445d20cccddd8f"
            ]
        ]
    },
    {
        "id": "686f35754394e116",
        "type": "ui_switch",
        "z": "36b3d6632c413afb",
        "name": "",
        "label": "Force start/ stopp",
        "tooltip": "ICE - just dont..",
        "group": "c24e4a9c.e31a68",
        "order": 2,
        "width": 0,
        "height": 0,
        "passthru": true,
        "decouple": "false",
        "topic": "topic",
        "topicType": "msg",
        "style": "",
        "onvalue": "true",
        "onvalueType": "bool",
        "onicon": "",
        "oncolor": "",
        "offvalue": "false",
        "offvalueType": "bool",
        "officon": "",
        "offcolor": "",
        "animate": false,
        "className": "",
        "x": 150,
        "y": 240,
        "wires": [
            [
                "3ded2428931db138"
            ]
        ]
    },
    {
        "id": "af619c4cc5014b86",
        "type": "ui_text",
        "z": "36b3d6632c413afb",
        "group": "c24e4a9c.e31a68",
        "order": 3,
        "width": 0,
        "height": 0,
        "name": "",
        "label": "True: running, False: not running",
        "format": "{{msg.payload}}",
        "layout": "col-center",
        "className": "",
        "x": 660,
        "y": 240,
        "wires": []
    },
    {
        "id": "e2ab6a5a844ef0f2",
        "type": "tasmota-mqtt-broker",
        "name": "",
        "broker": "192.168.1.211",
        "port": "1883",
        "clientid": "",
        "usetls": false,
        "keepalive": "60",
        "cleansession": true
    },
    {
        "id": "c24e4a9c.e31a68",
        "type": "ui_group",
        "name": "heater",
        "tab": "6310834e.f9ff6c",
        "order": 1,
        "disp": true,
        "width": "6",
        "collapse": false,
        "className": ""
    },
    {
        "id": "6310834e.f9ff6c",
        "type": "ui_tab",
        "name": "IOT - heater",
        "icon": "dashboard",
        "disabled": false,
        "hidden": false
    }
]

Acording to the 'Help' tab on the node:

Input

Starting the timer

payload

any msg.payload that does not stop the timer or reload the timer starts the timer.

Stopping the timer

payload boolean | number

if false or 0 : Immediately stops the timer.

It doesn't look like the 'Force start/ stopp' button is connected to the countdown node....