On the current Android app, folder can only be synchronized to a single library, with a single "policy" i.e. set of settings for synchronization. I would love to have the ability to sync certain folders to specific libraries, with their own set of policies. E.g.

Folder A --> synchronized to Library X, using WIFI only (large files)

Folder B --> synchronized to Library Y, using WIFI + mobile data (small files)

This allows me to synchronize my local messenger app backups (large, multi-gigabyte files) over WIFI, while smaller notes and textfiles get synced directly for direct availability at other Seafile clients.