This KB article provides details on how you can setup permissions in a Community Wiki.
All Agents, End-User
1. To set these up, click wiki > Manage Wikis.
2. Click the Configure icon next to the wiki.
3. Click “Edit Permissions”.
4. You can set a wiki to be readable and writable by any logged-in FogBugz user.
Note: You can then choose whether community users who have confirmed their email addresses have read-only, write or no access. Lastly, you can set the permission level for anonymous users.
If you need finer control over which FogBugz and community users have access, just select a group from the drop-down menu. You can set up as many groups as you like. Each one sets read, write or no access for each FogBugz user. You can also add community users to a group, granting them read-only or read and write access.