AndroidAPS/app/src/main/res/xml/pref_general.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <PreferenceCategory
        app:initialExpandedChildrenCount="0"
        android:title="@string/configbuilder_general">

        <ListPreference
            android:defaultValue="mg/dl"
            android:entries="@array/unitsArray"
            android:entryValues="@array/unitsValues"
            android:key="@string/key_units"
            android:title="@string/unitsnosemicolon" />

        <ListPreference
            android:defaultValue="en"
            android:entries="@array/languagesArray"
            android:entryValues="@array/languagesValues"
            android:key="@string/key_language"
            android:title="@string/language" />

        <PreferenceCategory android:title="@string/protection">

            <ListPreference
                android:defaultValue="1"
                android:entries="@array/protectiontype"
                android:entryValues="@array/protectiontypeValues"
                android:key="@string/key_settings_protection"
                android:title="@string/settings_protection" />

            <EditTextPreference
                android:inputType="textPassword"
                android:key="@string/key_settings_password"
                android:title="@string/settings_password" />

            <ListPreference
                android:defaultValue="1"
                android:entries="@array/protectiontype"
                android:entryValues="@array/protectiontypeValues"
                android:key="@string/key_application_protection"
                android:title="@string/application_protection" />

            <EditTextPreference
                android:inputType="textPassword"
                android:key="@string/key_application_password"
                android:title="@string/application_password" />

            <ListPreference
                android:defaultValue="1"
                android:entries="@array/protectiontype"
                android:entryValues="@array/protectiontypeValues"
                android:key="@string/key_bolus_protection"
                android:title="@string/bolus_protection" />

            <EditTextPreference
                android:inputType="textPassword"
                android:key="@string/key_bolus_password"
                android:title="@string/bolus_password" />

        </PreferenceCategory>

    </PreferenceCategory>

</androidx.preference.PreferenceScreen>