-* \save_origin:
- This variable was introduced to allow saving the document directory
- path in the document. If allowed, LyX will be able to locate all
- included files even when the document is manually moved/copied to
- a different location. If a valid \origin tag is present and the
- document was actually moved, the path of all included files is
- updated relative to the new location and the new origin will be
- recorded when saving again the document.