ISP Conf - How to increase backup retentions

Hi guys,
is there any way, how to increase backups retentions than actual 10? I want to do daily basis backups, but there is maximum keep only last 10 days.

Thank you
Take care

 

OK, thank you till for reply. Do you think, that should be OK to set up more than 30 days?

 

There is also a limit in server/lib/classes/cron.d/500-backup.inc.php:

Code:

for ($n = $backup_copies; $n <= 10; $n++) {