How to map Option+X but not change Option+Shift+X in KeyRemap4Macbook?
&lt;autogen&gt;
  __KeyToKey__
  KeyCode::C, VK_OPTION | ModifierFlag::NONE,
  KeyCode::CURSOR_LEFT, ModifierFlag::FN
&lt;/autogen&gt;


The use of | ModifierFlag::NONE prevents other key combinations from being remapped.