> * I did not find a useful setup where you'd repeatedly set the same signal. You can do this with the spin wheel, though. It could make sense for a switch target that has multiple states and you can cycle through them or go up/down multiple times. In that case maybe a single callback is better, but the target has a setting for not doing a callback unless the signal changes. Edit: Even that may not be necessary after all.

That was pretty common in CR. For example, a switch would control a moving platform and the platform gets stuck. You then dig it free and press the switch in the same direction again.

A door could also be multi-stage. E.g. the first up-signal moves it up halfway, and the second signal all the way.