S3 Storage Classes per Library

It would be really cool if Seafile Pro would feature possibility to setup Storage Class on S3 per Library. Storage Classes: https://aws.amazon.com/s3/storage-classes/

Example usage:
Library with Standard: for frequently accessed files, ordinary storage
Library with Standard - IA: Infrequently accessed data, low latency (for backup, movies, audio-files and large files), long term storage
Library with Reduced Redundancy: Non-critical storage, low cost