Talked to soon, this ability is blocked in Veeam B&R, so only backup and backup copy jobs and SOBR evacuate can write to Catalyst Store. So you can add both repositories into SOBR and use evacuation to migrate from one to another. Please keep in mind that the chain should be forward per-VM chain and not exceed the supported length
, otherwise there could be issues with using it for mapping or restores.
Regarding encryption, do you mean the job that backs up data to the local storage has encryption enabled or other sort of encryption?