If you want to copy another musician's data into your SongBook+ without overwriting your own data, you can now also create subdirectories in SongBook+ with completely separate data.
Each of these directories then contains its own database (files SongBookMidi.sqlite, SongBookMidi.sqlite-shm, SongBookMidi.sqlite-wal), its own settings (file SongBookMidi.settings), and your own files (PDF, MP3,...).
Creating and accessing such subdirectories is unfortunately not possible via iTunes, but only via the Wi-Fi sharing feature of the SongBook+ folder or through the "Files" app.
For more information on accessing via Wi-Fi sharing or the "Files" app, visit the page #ref37432233.
Simply create directories starting with "SBDATA_", for example:
SBDATA_My data
SBDATA_Sandra
SBDATA_Thomas
The current folder can then be easily switched in the settings.
After selecting a different folder, SongBook+ will close and must be restarted.