There are three ways to take a Project Page offline. Setting an end date or archiving can be undone; deleting can’t.
Set an end date
The easiest way to control the time that a Project Page is online is to simply add a publication end date in Settings.
Archive
You can also archive Project Pages that are no longer needed. This takes the page offline and disables the editing mode, but retains it under Archived. To archive a page, simply select it from the list in the Pages main view and choose Archive from the drop-down menu under Actions on the upper left corner.
You can restore the page at any time by going to Archived, selecting the page and choosing Actions > Restore.
Delete
PLEASE NOTE THAT ONCE DELETED, A PROJECT PAGE CANNOT BE RECOVERED!
Select the page from the list > open the Actions menu on the upper left corner > choose Delete.