Idea Summary
Allow a page (perhaps any page but especially a global page) to be a subscription to another (global) page in another application.
Use Case
In a multi-application apex architecture this would enable changes to common components and logic on page 0 to be applied once and rolled out to all applications
Preferred Solution (Optional)
using simmilar functionality well established in apex for subscriptions and publishing (such as for lists, authorization / authentication , etc.)