karabiner config for using OSX shortcuts in Virtualbox windows guest

private.xml

<?xml version="1.0"?>
<root>
  <item>
    <name>Virtualbox</name>
    <identifier>private.test</identifier>
    <only>VIRTUALMACHINE</only>
    <autogen>__KeyToKey__ KeyCode::Z, VK_COMMAND, KeyCode::Z, VK_CONTROL</autogen>
    <autogen>__KeyToKey__ KeyCode::S, VK_COMMAND, KeyCode::S, VK_CONTROL</autogen>
    <autogen>__KeyToKey__ KeyCode::X, VK_COMMAND, KeyCode::X, VK_CONTROL</autogen>
    <autogen>__KeyToKey__ KeyCode::C, VK_COMMAND, KeyCode::C, VK_CONTROL</autogen>
    <autogen>__KeyToKey__ KeyCode::V, VK_COMMAND, KeyCode::V, VK_CONTROL</autogen>
    <autogen>__KeyToKey__ KeyCode::A, VK_COMMAND, KeyCode::A, VK_CONTROL</autogen>
    <autogen>__KeyToKey__ KeyCode::FN, KeyCode::PC_INSERT</autogen>
    <autogen>__KeyToKey__ KeyCode::CURSOR_LEFT, VK_COMMAND, KeyCode::HOME</autogen>
    <autogen>__KeyToKey__ KeyCode::CURSOR_RIGHT, VK_COMMAND, KeyCode::END</autogen>
  </item>
</root>