Topic Locks for Users
When a user attempts to edit a topic that has been locked the top of the edit page notes that the topic is locked and the save buttons are not available.
Topic Locks for WikiAdmins
The WikiAdmin role is necessary to administer topic locks. When logged in as a WikiAdmin locking functionality is available from the either the Topic Listing page, in the left-hand menu, or from the Topic Read or Discussion Read pages. The Lock / Unlock functionality is in the Page Action column of the Topic Listing page. On the read topic or read discussion pages it is at the bottom of the page beside the version information.
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