By default, the owner of a Topic is either a personal profile or an Organization. You can, however, override the Organization-level permissions by assigning members to a Topic.
When the Topic’s owner is the Organization, permissions to edit that Topic are inherited from the user roles assigned at the Organization level. For example, if Joe is a Reader in the organization, he automatically gets Read control over all Topics. However, there may be cases where you want to extend permissions at the Topic-level. In this case, you can edit the Topic members.
Set up permissions per topic only when truly needed. From the management point of view, using default Organization permission settings is the best practice.
To set user permissions at the Topic level:
Login to the Inline Manual portal with your username and password.
Go to Sites and choose the desired Site.
Choose the desired Topic.
Add /teams to the URL in the address bar. For example:
Substitute 123 for your Topic ID. Here you can add a member to edit this Topic.