Master Property Manager enables users to centrally manage a set of Launch resources (Extensions, Rules, and Data Elements) in a Mater Property. These resources may then be propagated and synchronized across many managed "Child" properties.
Master 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: