Speaking for myself I really would appreciate if we could add pdfs manually to our Keil projects. I don't find the books tab very handy, the default datasheet and summary have to be downloaded from online and as these uC manuals are >1000 pages it is rather annoying to wait for it to download each time.
...If we could do away with the books tab and just allow for a folder to be added to the Project tab and let all PDFs added to a "PDFs" folder be ignored by compiler that would be best in my opinion.
"So lets just add the PDF. I click below the 'Summary' entry and the button below changes text to 'New Book...'. A window pops up for me to name the document and select the location of the pdf. I hit OK and go bacl to the books tab. The new pdf link is there and I am able to double click and the pdf opens -So that works. But that was pretty painful/nonintuitive no?"
It's pretty much the same process as adding a source file to a project - isn't it?