I think there is a need for module like this. Definitely some users want to double on the backups and not rely on the host only and these users are not knowledgeable enough to mess with the console.
Ok Slava this could be included in your Pro version:
- on the backup page have a list of all directories/files the backup will not include by default and allow user to select any of them to include
- same with database tables
This will satisfy Kevin's requirement too