As of version 1.27 you can now add comments directly to the panorama file "sunpath.jpg". To do this simply enter text into the comments box and click the button labeled "Update". A maximum of six rows of text can be displayed.
You can easily recalculate shading factor data for various array configurations and latitudes by changing your preferences and clicking the "Update" button. (Note: The spreadsheet and panorama files must be closed before the "Update" feature is activated in order to properly update.)
To select a different camera model, ASSET Angle, or Photo Set, you will need to open a new project (File→New Project) and re-select the pictures so the panorama can be re-created.