we never tried manually concatenating two files but in theory it should work though. The ini file format is fairly straight forward just make sure to follow the format. If it doesn't work you can always import different books.ini sequentially.
Let me know how it turns out you're the first one to use this feature (outside of us) that I know of.
Let me know how it turns out you're the first one to use this feature (outside of us) that I know of.