You may want to check the documentation for the Revision approval, Flagged Revisions

Flagged Revisions tab

Related Topics

Overview: Use this tab to allow wiki pages to be drafted before they are "approved" (published)

To Access: From the Administer Wiki page, click the Flagged Revision tab.

Note: You must enable and configure the necessary categories before enabling this feature.

Option	Description	Default
Revision approval	Uses flagged revisions to hide unapproved wiki page revisions from users without necessary privileges.	Disabled
Revision approval categories	List of category IDs for which revision approval is required.	None

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