Board Thread:Support Requests - Designing Your Wiki/@comment-32208649-20170901012429/@comment-35494933-20170901031144

I assume you want to protect a page. You need to be an administrator to do so.

To protect a page, hover over the "edit" button and select the "Protect"/"Change protection" option, then select who you want to lock the page to (regular users, autoconfirmed users, or admins/content mods). You can also choose to protect the page from being moved (renamed) to the same groups.

Hope this helps!