Prevent Sync for Folder

how can you prevent a folder from being synced from the server side? right now, desktop and mobile client defines what is synced, which means users define sync. I want admin to define what can sync.

undefined behavior is that external storage can’t be synced, and that group folders

https://help.seafile.com/syncing_client/excluding_files/

I’m not aware of such a feature. Users may sync any files they are allowed to access.