I am in favor of being able to create a blueprint to make multiple of the same build. I do want limitations on crafting materials though. Like no creating objects that would take more resources than you can actually carry, that would lead to crazy griefing. I feel that the easiest way to ensure that is you have to be carrying the mats and the blueprint to place them down.

Beaconing it might need to be a separate process, again just because you are saving a lot of time doesn’t mean you should have no hurdles. Calculation of the number of plots needed could be a lot harder to judge if where you plop it down happened to be the top 3 blocks of a plot vs the bottom 3.

Part of the wonder and charm of super detailed cities is you know people made all this by hand, every block. That is what we are poised to loose if a system like this is added. Is it worth loosing that? That answer will be different depending on who you ask.