KeyboardRemap4MacBook - secret sauce to remap F19 (remapped from caps lock → F19 in Seil) to a hyper key

private.xml

<?xml version="1.0"?>
<root>
    <item>
        <name>F19 to F19</name>
        <appendix>(F19 to Hyper (ctrl+shift+cmd+opt) + F19 Only, send escape)</appendix>
        <identifier>private.f192f19_escape</identifier>
        <autogen>
            --KeyOverlaidModifier--
            KeyCode::F19,
            KeyCode::COMMAND_L,
            ModifierFlag::OPTION_L | ModifierFlag::SHIFT_L | ModifierFlag::CONTROL_L,
            KeyCode::ESCAPE
        </autogen>
    </item>
</root>