The Files tab provides a list view of File Threads, each of which can contain any number of versions for the specific file. A "Thread" logic is used to provide a basic method for versioning, however the Thread format may also be used as a grouping system for tracking files as a collection. From the Files tab you have the option to Open, Remove, or Create a "New Thread".
When opening a File Thread, a new "File View" tab will be created where you will be able to manage the files that have been added to the File Thread. Files are listed in the order they were created, starting with the most recent. Each file version can be edited or removed with the exception of the first file which can only be edited. Deleting a File Thread will delete all files that are stored for the thread.