Access masks will override any forum-level usergroup permissions for this user.
To edit access masks for a specific user, go to Users > Search for Users > searching for the user you want to edit > clicking [Edit Forum Permissions] or [Edit Access Masks]. You can quickly view existing access masks by going to Users > Access Masks.
Access masks work similarly to forum-level usergroup permissions; inheritance to child forums still occurs. However, you will not have as many options as with a forum permission:
- Setting a user’s access mask to yes for a forum gives them the same permissions in that forum as they have at the global level, regardless of any forum-level usergroup permissions specified.
- Setting the mask to no denies them access to the forum completely, as if each individual permission were set to no.
- Default simply means no special access mask is specified; forum-level usergroup permissions are used.