I find that I cannot layout the unit test session window such that it is easy to see both the unit test results, and read their error output. The unit test session window is ideal when viewed in a vertical layout, but the error result really wants to be a large wide window, as such I end up having to constantly resize the unit test session window to switch between wide to read the errors, and narrow so it doesn't take up my whole screen.
Ideally I'd like to be able to have the error output as a separate window so I can add it as another tab that lives down the bottom with my error list, to-do explorer and output. I would expect the filtering of this window to work in tandem with the unit test session window the way it currently does. So selecting a unit test in the unit test session window would filter the unit test output window.