Seafile in a hybrid setup

Hi there,
does anyone have experience with running a Seafile Professional Server in a hybrid setup (i.e., part of the data sent eg to AWS which is supported as a backend). Is this supported?

With the next Professional version (which is being released, soon - I think) there will be a feature to use multiple storages. I think that should support saving data on different backends and also to define which data should be stored where. But for the details we have to wait until the release.