What do the lock and unlock in the Wiki serve for?
While you are adding new paragraphs to a wiki or editing an existing wiki page or paragraphs, you need to have the wiki page locked. This is accomplished by simply clicking on the Lock link button. This avoids the risk of editing the wiki page by several people at the same time and prevents data loss. After you finish editing the wiki for a particular project or task click the Unlock link button, so afterwards others can edit it, or if you do not want to save the changes which you have made, click the Undo lock link button to return to the initial content of the wiki page.
