Comment 1 for bug 156199

To clarify, since lodging this I've discovered the context menu which contains the functionality. I had to look at the source code itself before I realized it existed.

I don't think the context menu options are suitably clear enough - they suggest direct manipulation of an individual entry rather than a mass action. They are also hard to discover.

Having a more visible control would solve this problem, and eliminate the need for the entire right click menu.