Improve/Enable reverse logistics

[Bilka2]

or add a command option to enable them while you work on them

[demodude4u]

I can definitely add an option to turn on reverse logistics. But I'm wondering, what use did it have for you?

[demodude4u]

As a research topic, I could look at coming up with a solver that creates a graph of the belts and comes up with the most reasonable guesses as to which input belts are holding which items.

[Bilka2]

It's nice if you somehow get the wrong items somewhere. Blueprint that and see where the items should be. Also nice if your items aren't ending up where they should/ending up nowhere to find the error.