Can I set personnel operation permissions for the collection, such as download restrictions, view restrictions, etc
Hi @durain
You can define view and edit permissions of a collection:
https://www.metabase.com/learn/permissions/collection-permissions.html
It's currently not possible to define download permissions, but it's something that we're working on:
https://www.metabase.com/roadmap/
https://github.com/metabase/metabase/issues/9264 - upvote by clicking 
on the first post