Control rods don't remember their groups and fuel rods don't remember any of their settings. Same goes for interfaces. Control rods especially cannot even be shift clicked to transfer settings over, it has to be done completely manually.
Its really annoying because it hinders both making pastable blueprints for general and actually testing reactors. Its getting tiresome having to manually reset the reactor every time I accidentally blow it up instead of pasting a blueprint to see what went wrong.
