Our dev team uses Jira to manage epics/stories/tasks
We want to add to it additional hierarchies for product, above story, so that the hierarchy will be
Goal -> Initiative -> Epic -> Story -> ....
Goals are unique, and each can have several initiatives.
Each initiatives can have several epics.
etc etc.
This way I will be able to create a plan using this hierarchy, showing top level goals, under which initiatives, and only then epics
How do I do this?