cluster level after-backups job/script: would it make sense? howto?

Hi,

I was just wondering if there was a way to automate with a script a job to copy nightly backup files (pve cluster defined job) to another storage.
I know single backups can hook a script but I thought it would make sense to execute it after last job has finished (ie: when pve sends backup job mail report), jusat don't know if there is a way...

any thoughts?

Marco