I've discovered a (pretty handy) bug - when I place an assembler and choose any colored concrete recipe, the assembler will immediately fill up with 20 concrete blocks of that color, no need to insert regular concrete or even connect it to electricity. If I connect an inserter that transfers from ...

Yeah, or perhaps this thread is about to get filled up with players expressing their astonishment.

Krayt wrote:Do you rather mean the size of the concrete brush. I think this done using the "plus" and "minus" buttons.

Had to register an account just to say TIL. I can't believe I never noticed this in the controls settings, this will definitely come in handy!