I understand that complete issues will be showed in burndown chart when the most right column is "Completed". But my question is I want "completed" column will not be right most corner and it can be middle column. And how can we customized burndown chat to work properly. For example, my work process columns sequence is like that "To do, develop, completed development, QA, QA passed, completed". At these columns, I want to burndown chart when the column stage of "completed development" status. Is it possible to customize.