In the devices app, we can schedule backups of the systems, so far this works fine.

But, it would be great to be able to retain more than 10 backups.

If you do daily backups, then you can only go 9 days back, which often is not enough when a problem was introduced 2-3 weeks ago and the users don't remark it instantly.

Currently the UI is not allowing a value above 10.

The old style back can handle more than 10 backups.

The workarround is to make multiple backup jobs, each with different file prefixes.