Talk:Tar Extractor/@comment-2600:8807:C040:AC90:C451:DDA8:48AC:AE29-20171008001458/@comment-26961317-20171008101153

You can easily prototype and craft a structure, and then store it to place it somewhere else later. It's called pre-building. Instead of placing the structure, you just need to click on the menu button on the crafting menu again. You will notice that the icon of the structure now has a blue background.

This is actually a very useful feature, that allows you to always have a pre-build Campfire at hand.