In this case, it doesn't make sense, the program would generate a backup from all the business that you have. But if you restore the information the same program would message you that would replace the information.
Now if you are using a Synch device and you are restoring information from a different machine, you are doing the backup for 1 business so we n you are restoring the information that's why it is not appearing. the best would generate the backup folder from the email computer. and to the restoration from that folder.