I am trying to add a filter to the left display to act the same as epics

[Dan Bailey]

We have begun to insert feature between EPIC and ISSUE. we link issue (story) to feature to epic.

I have had organizations before that had a display option for feature similar to the option currently showing for EPIC. You select the feature button and you get a list of all features and all stories in those features. I think this might be a plug in but not sure