Feature: Swap the To and From Slots

[zauberparacelsus]

Sometimes, I find myself switching the essentia types in the To and From slots. The reason being that the results are easier to read and apply if the essentia at the top of the results is the top-most or left-most essentia in the path on the research interface. But if the essentia at the top of the results is the bottom-most or right-most on the path, then I find myself sometimes accidentally writing essentia symbols in the wrong order.

So, I was wondering if a swapping button could be added, for sake of convenience.