by Ken Task.
Autobackups aren't that sophisticated! ![sad]( "sad")
But, there is a command line way by making a text file listing that contains nothing but the course ID numbers of the courses you want backed up in an auto way and then looping through that list in a bash shell script using the backup.php script found in code/admin/cli/
If you provide no destination parameter to the backup.php script, those backups will go to the sea of files in moodledata/filedir/ joining the other 'spread all over creation' .mbz files.
Cron job you schedule as desired pointed to that bash shell script that is doing the looping! ![smile]( "smile")
'SoS', Ken