To forecast our releases, we count the stories then divide by the throughput (stories per week) to get weeks of effort. For the initial forecast, we assume all the epics have the average number of stories, For the second forecast, we estimate the story count of each epic (stored in the story points field). Then as the epics are refined, the actual story count replaces the estimate. As stories are removed or divided, the forecast just keeps getting better.
Question 1: How can a do an filter on epics and get a total on a field (the story points field with the story count estimate.)
Question 2: How can I do a filter on epics and get the total related issue count to count actual stories.
Question3: Is there a way to use the estimate if there are no related issues or the actual issue count if there are issues?