Parent/Child Property Manager
Parent/Child Property Manager enables users to centrally manage a set of Launch resources (Extensions, Rules, and Data Elements) in a "Parent" Property. These resources may then be propagated and synchronized across many managed "Child" properties.
Parent/Child Property Manager uses Launch Libraries to define groups of resources for propagation. The process of defining a change-set and propagating it to one or more properties is pretty simple.
For detailed information on how to work with the extension follow the link below: