Node-RED block in Snap4City Microservice library node-red-contrib-snap4city-user is "impulse-button">
    <p>With this node you can add a button to an existing dashboard or a new one created by the node. If this button is pressed,
        it outputs a message from the top output, if the button is released, it outputs a message from the bottom output.
    </p>

    <h3>Configuration</h3>

    <dl class="message-properties">
        <dt>dashboard
            <span class="property-type">string</span>
        </dt>
        <dd>Dashboard title to which the button will be added</dd>
        <dt>widget
            <span class="property-type">string</span>
        </dt>
        <dd> Title that will have the widget containing the button.</dd>

    </dl>

    <h3>Outputs</h3>
    <ol class="node-ports">
        <li>Impulse Value
            <dl class="message-properties">
                <dd> Returns the impulse value when the button is pressed</dd>
            </dl>
        </li>
        <li>Base Value
            <dl class="message-properties">
                <dd> Returns the base value when the button is released</dd>
            </dl>
        </li>
    </ol>