Item Request Slots for allready placed entities.

[Aunte]

I've tried to put modules into my miners (energy efficience 2, 2x). It was a pain to do so, in the end i deconstructed my mining outpost and build a new one with an updated blueprint.

There should be an option to assign the Item Request Slot (https://www.reddit.com/r/factorio/comme ... _slot_and/) to an existing entitie.