I was wondering if anyone knows how to print saddle stitch booklet from Book File?
I know how to do it from normal Indesign file. However, book file is different since there are so many different indesign files.
The most straightforward way to do this is to export to PDF, then use the PDF booklet printing option in the Print dialog. As you have seen, the Print function from the Book Panel doesn't offer a booklet printing option.