We're in Ireland, but are hosting client data on Backblaze in the US. Backblaze now offer storage in Ireland, which we'd like to move to. They don't yet offer moving between facilities directly, so we'd need to create a second account and choose Ireland as the location.

The end result I need is for all client machines to begin backing up to the new account and then delete the original one as soon as all clients have full backup histories, according to the retention policy. I take it the first step would be to add the new second Backblaze account under Storage > Storage Accounts. What would be the best strategy from that point?