Can I change the ticket structure/relation in a project in bulk?

[Antonio Duarte]

Hello,

We currently have a project that has all its stories written as Epic-tickets and tasking is done under those epics as Task-tickets. I would need to change this so that

Epic-tickets become User Story-tickets

Task-tickets (under the previous Epics) become Sub-Task tickets (under the new User Stories)

And the relation between the tickets need to stay in place. The defailt bulk ticket management tool doesn't retain the relations even though I could do the transition easily.

Is there an app that does this easily? I really don't want to do this by hand one epic at a time.. :(

Thanks for the help in advance!