An idea of mine which I made with this, it uses arrows to indicate progression from one class of capacitor to another. If there are two arrows going in opposite directions, that's because one class is superior to the other in some way, but inferior in another (which way is indicated by the adjacent text). I'm thinking of using colours to denote certain attributes (such as an obsolete class, or a known bad series), but for the time being there's no such coding. (I know there's a rectangle tool, but I can't actually use it because if you do so, it prevents you from selecting anything inside the rectangle in question.) Feel free to contribute, however you can only include a small number of equivalents in each class or you'll bloat out the entire chart.
(Chemi-con KZV is just a guess, but it seems logical enough to me, as I remember reading that it's related to KZG and KZJ. I haven't heard of it actually being used.)
