Some questions and suggestions.

Ok. But would there be anything technical (or philosophical) against the switch switching itself? Like for instance that clicking on up-slur (when down-slur is default) would make the switch turn on by itself. Now it’s on, and the user can see that defaults are overridden etc. This has been debated in another thread, but was not really answered. I completely understand if you just haven’t had the time for implementing this possibility, but I don’t understand it as a design choice.