Discussions are organized into a set of forums which users can post to. Forums can be grouped together into forum groups. Users can post a discussion in a forum to discuss a specific topic. Users can like and reply to discussions and replies. Users can subscribe to forums as well as individual discussions. Replies to a discussion can be marked as the answer to the discussion.
"Top level community" refers to the entirety of your intranet, in contrast to spaces, which are sub-communities of the top level community. If a space is private, users who are not members of the space cannot view its content, whereas everyone in your intranet can view top level content. Top level discussions can be accessed through the Browse menu.
Managing top level discussions is similar to managing space discussions.
Manage Space: Add Forum
Manage Space: Edit Forum
Manage Space: Delete Forum
Manage Space: Activate/Deactivate Forum
Manage Space: Edit Discussion
Manage Space: Delete Discussion
Manage Space: Sort Forums
Manage Space: Forum Permissions
is requesting access to a wiki that you have locked: http://my.axerosolutions.com/spaces/5/communifire-documentation/wiki/view/22142/top-level-discussions