Grouping EPICS

[Mary Kay Soto]

I've been reading through various JIRA documents trying to figure out how to manage Cross-Project work. We need a way to group EPICS together because JIRA has the limitation of only showing the EPIC on the Agile board, if is assigned to a specific development team (we have REP, PROP, Integrate, etc.). I understand there is Initiatives and also Themes.  Does anyone have informatoin about the use of either of these features? I also read that we would need Portfolio to use Initiatives, which we don't have. Is anyone aware of another way to group EPICS?

Thanks 
Mary Kay