cineSync 5 supports OTIO files, and it can reference any number of files.
To use and load the OTIO file, you simply need to add it from the ‘Playlist’ menu or drag’n’drop it onto the cineSync Play playlist while providing that all the media is accessible.
cineSync will be told where to pull it in from, and the files will be loaded automatically. (With OTIO files, you always need to have the media added.)
As a new feature, cineSync 5 now also enables you to export your File Sequence(s) as an OTIO file(s)
For more information, take a look at the File Sequence Playback & OTIO export article.