The various programs of Panorama Tools all use a text file
(script) to read information about the input and output images. The script
uses it's own form of shorthand to describe various aspects of the input
images and the final stitched image.
Documentation for Panorama Tools
The key to each line of a script is the first letter. I have broken the
information into sections that are most relevant to the two main programs,
although all of the information is kept in the one script file.