How do I close a monitor?

When a user goes into Maintain->Monitor and places a "Close Date" for the monitor and saves it, the system will automatically add an end date to the Sample Period tab.  All other monitor or metadata, including agency roles, will automatically receive a close/end date as well.  The reason a user would enter a close date is if their intention was to never use the monitor again.  If a user closed it in error, they must go back and change all the end dates the system automatically inserted.