element-android/vector/src/main/res/menu/menu_timeline.xml

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

    <item
        android:id="@+id/resend_all"
        android:icon="@drawable/ic_refresh_cw"
        android:title="@string/room_prompt_resend"
        android:visible="false"
        app:showAsAction="never"
        tools:visible="true" />

    <item
        android:id="@+id/clear_all"
        android:icon="@drawable/ic_trash"
        android:title="@string/room_prompt_cancel"
        android:visible="false"
        app:showAsAction="never"
        tools:visible="true" />

    <item
        android:id="@+id/clear_message_queue"
        android:title="@string/clear_timeline_send_queue"
        android:visible="@bool/debug_mode"
        app:showAsAction="never"
        tools:visible="true" />

</menu>