I can get to the HTML web-based manual for SkySafari Pro 6 for iOS, but I cannot locate the manual for SkySafari Pro 6 for Mac OS. Can you please let me know where I can find it? Also, I would very much like downloadable PDF versions of the manuals for SkySafari Pro 6, for both iOS and Mac OS, please. How can I obtain the PDF versions for local offline reading & reference? Thank you.