How to search on changes to user objects located in a specific OU (4236450)

How to create a search for changes to user objects which reside in a specific OU.

The requirement exists to search for changes to user objects which reside in a specific OU.

1)Create a new search.
2)On the "WHAT" tab, select "ADD WITH EVENTS" and select an event class with "Custom User Monitoring" facility. Click "ADD" and select "Add All Events in Facility".
3)On the "WHAT" tab, select the arrow next to "ADD" and select "Subsystem" | "Active Directory" and select the desired OU to include in the search filter.