You can schedule automatic backups of files to your iDisk or attached disk drive. Of course, your disk drive must be turned on, or you must be connected to the Internet for scheduled backup to your iDisk.
1.
From Backup's pop-up menu, choose Back up to iDisk or Back up to Drive, depending on which device you want to schedule.
2.
Click the "Schedule" button (circled) to open the Schedule sheet, shown to the right.