Central PI Vision server to collect displays from localized PI Vision servers

As a global company with sites all around the world, local laws sometimes force us to have separate web servers with separate PI Visions. It would be good to have a central PI Vision server that can connect and access displays from all of the site PI Vision servers. Currently, if we want to access the displays created in that separate PI Vision server, we have to access a separate PI Vision site. This can be complicated when we have to compare displays from several different web servers. This is also a limitation when we want to deploy a single global layout for a specific display. Copying displays across servers is not a complete solution because the copied display is not linked to the original one and changes made to the source display are not replicated (no single version of the truth).