In order to bring more awareness to our Teams regarding the total effort spent in new features we would like to sum the total time spent first at US level and then at their Epic Level. So,
a) how can we replicate the JIRA field at Time Tracking "Logged" (aka TimeSpent) + "include sub-tasks" ?
b) now at Epic level? how could we show the total of Time Spent in each issue that belongs to that Epic?