Hmm. I'd set up a Backup Copy Job to keep everything besides your first week and use GFS retention to do that - set the first option to two restore points, and then keep however many quarterlies you'd like: https://helpcenter.veeam.com/docs/backu ... tml?ver=95
. The older increments are unlikely to help you anyways and will create a huge amount of space overhead.
Send the Backup Copy to a different repository if you'd like, but if really necessary it is possible to send it to the same one as your source backup job.