Hi, the reason why we create a big page from each function is so it then can be printed in any kind of page (Not just A4, but A3, A0 and on industrial printers).
When you open the PDF and choose to print it, then you have an option to print it as "Poster" (at least, that's the name of the option in Acrobat reader. Other programs may name it differently).
So now, when you choose the printer and the page size, acrobat splits it to several pages (some of them are also on the horizontal axis, since the function logic might be too wide to fit a single page).
Printing HMI and Tags is on our To Do list (but not for the next version).