In some cases, your site may contain content only meant for certain users or groups. For example, you may create a new library for a special project, and want to ensure that only people who work on that project can access the library.
Access can be granted or restricted. To restrict access, you have to break permissions inheritance, and then change the permissions for the list or library on a uniquely defined permissions page. Read below to learn more.
To restrict access to a list, remove the users or groups from the group that has permission to access the list. To remove users from a group, follow these steps.
To set permissions for an individual separate from the group he or she belongs to (e.g. “members”), start by clicking on “People and Groups” in the Quick Launch bar.
APAN BEST PRACTICE
This is not an APAN Best Practice. If you have several owners in your community who are not aware of these permissions, this could cause issues for other owners to manage permissions and who has access to what. It may be simple to create a subgroup and manage permissions this way.