Adding new hierarchy in Jira Advance Timelines

[Meer Mansubdar]

I have created a new hierarchy issue in Jira above Epic, I have added the issue type in my project as well. Now when I am trying to use the new issue type in Advance Timelines  I am not able to create the issue there. 

Error message is: "This level is currently hidden, to create <new issue type> issues, include this level in the hierarchy range."

Now does that mean that I need to create the new hierarchy below Epic level? If yes, 1. what if I need a new hierarchy above Epic. 2. What will happen to the Epic Link (since to add the new issue type below Epic.. I will have to move epic above by creating a new level and renaming it to epic and associate "Epic issue type" to it, and then in place of Epic level I will have to rename it and associate the new issue type.