We have agents listed in the Agent Overview that have not checked in for months.  These are machines that may be retired for one reason or another.  How can I remove them from the UI?

There is no automated way to remove the agents from the UI.  The agents must be removed using the delete button from the Agent Overview page.  There is a filter that can be used to narrow the agents listed.  There is also a select all button. 

If you remove an agent that is still active, it will be repopulated automatically the next time the agent checks in.  However, removing the agent will remove the Agent Events from the database.