Buttons or hot keys (or both) to expand and collapse all nodes in Tested Items pane of a project

You mean these? :-)

Alrighty. Don't I feel like a dope. That said, having it in the context menu of a selected item does not make a ton of intuitive sense. Thanks.

I agree.  It would be nice to have the options as a pair of buttons somewhere on the screen.  It might be a real-estate thing, though.  Perhaps modifiy this request for that?

There are other things I would like to see more. I think I will not. But darn I waste a lot of your time with these. :)