I'm looking to set up a template or view that will connect themes -> initiatives -> epics -> stories across multiple product areas. The idea would be to allow individual pods of sub-products or feature areas to continue managing their SCRUM backlogs but in a way that can latter up their work to higher level initiatives and themes across all our team's product areas. This would be used for group clarity on what everyone is working on as well as for executive and broader organization reporting.
What's the best way to do this?