private.xml

<?xml version="1.0"?>
<root>
  <item>
    <name>Change Shift_Underscore(_) to Singlequote(')</name>
    <identifier>private.swap_singlequote_and_backquote</identifier>
    <autogen>
      --KeyToKey--
      KeyCode::JIS_UNDERSCORE, VK_SHIFT,
      KeyCode::KEY_7, VK_SHIFT
    </autogen>
  </item>
</root>