conversations-classic/src/main/res/menu/activity_conversations.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/action_scan_qr_code"
        android:title="@string/scan_qr_code"
        app:showAsAction="always"
        android:orderInCategory="10"
        android:visible="@bool/show_qr_code_scan"
        android:icon="?attr/icon_scan_qr_code"/>
    <item
        android:id="@+id/action_accounts"
        android:orderInCategory="90"
        android:title="@string/action_accounts"
        app:showAsAction="never"/>
    <item
        android:id="@+id/action_settings"
        android:orderInCategory="100"
        android:title="@string/action_settings"
        app:showAsAction="never"/>

</menu>