Gadgetbridge/app/src/main/res/layout/activity_qhybrid_hr_settings.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:weightSum="1">

    <ListView
        android:layout_width="match_parent"
        android:layout_weight="0.4"
        android:layout_height="0dp"
        android:id="@+id/qhybrid_action_list"/>

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="add action"
        android:id="@+id/qhybrid_action_add"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="top button single press"
        android:id="@+id/qhybrid_button_top_single_press"
        android:textSize="20dp"/>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="middle button single press"
        android:id="@+id/qhybrid_button_middle_single_press"
        android:textSize="20dp"/>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="bottom button single press"
        android:id="@+id/qhybrid_button_bottom_single_press"
        android:textSize="20dp"/>

</LinearLayout>