The ability to set the default location for Message/Domain/Object storage.

We want to have message on HDD storage, and Domain/Object on SSD.
However having to change every single domain that is added is tedious, and I'd imagine anyone wanting to separate the locations of their storage would want to do it for all accounts, not just some.

As such It would be good if we could set the server to always place Object storage in X and Message storage in Z. Then all new accounts created would follow this methodology.