Master Projects is a long-standing feature of Impact in which a common design is able to be re-used in many other projects, whilst providing traceability and strict version control across any references. This feature is now compatible with our multi-site database solution Enterprise, which also sees improvements to viewing related master project/layer data with the Impact Browser.
The 'Inserted Layers' browser tab seen here is only displayed for Master Projects, and lists projects where its layers are inserted - which now includes those located across a business-wide Enterprise setup
See also: Master Projects, Impact Browser - Advanced Operations