Blueprint Planning mode. Robots will not build anything until you turn it off.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
SOMEONE DID THIS! I WAIT FOR THIS SO LONG
Hey, don't play on 0.17.67 there's a bug which will be fixed in 0.17.68. https://forums.factorio.com/viewtopic.php?f=30&t=75244