Hi everyone,
How do you DELETE ALL from this view (Issues)? See attached screenshot.
All but one are JIRA's own "sample data". We want to remove all of them in one keystroke.

And, can someone help me understand how and why things are nested?
- There is a S/W project
- A Board.
- An Epic.
We just want to organize by Epic possibly with a board.
But would like to learn the best way to use them, or if they are all necessary.
Thanks,
T