View estimates of a group of tickets

I am attempting to use the time tracking and estimating functionality to plan some development. So what I wanted to do was enter the estimates to get an overall amount of time for an Epic. However, it does not appear that there is a manner to view the information in the UI with a group of tickets. Is there an ability through the api that would allow this and how would I do it? Or am I missing something about viewing estimates / spend in the UI?