Copy paste

[Ratpack412]

So, when you got the construction gun out (not sure what its called just started playing a day ago) you can use middle mouse button to copy a structure to build more of them. I think it would be really good, for when setting up your factories if you could say hold ctrl or shift while using that middle mouse button to copy multiple things and then "paste" them. Say you got a nice little build going but you want to expand it 10 fold, instead of having to build each little thing you could just mass produce it. And this may be ripping off of factario but a blueprint mode would also be really nice to save your designs and such.

[Grandaddypurple]

Apparently devs are currently studying different possibilities for blueprints, your suggestion is probably already on their list of "to be scrutinized"
Check out this 5min clip of the dev stream if you want to know more about their philosophy and development approach on blueprints (haven't watched the whole thing myself but you might be interested)
https://youtu.be/9Yqc4z9NPI8

[Tenzek]

The "Smart!" mod will do this for you currently.