Hello,
I'm looking for a way to show a classic burndown chart for an epic or release in Jira Cloud. I understand that unless I have estimated all user stories/tasks for an epic or release upfront, there is no really a target and an actual to be used in building a trajectory.
However, I was hoping that I can build a high level burndown chart based on the epic percent completion or the number of epic/release items done. Is this possible?
Is there a way to achieve an epic or release burndown chart that resembles close to:

Instead of what currently Jira Cloud provides in its Reports:

Your advice is appreciated.
Regards,
Stoyan