Help needed

[Ed Kolis]

Select your planet, then find the button that looks like a building with a recycling symbol next to it. Select the facilities you want to get rid of then click OK, and then you can build new ones in their place. It's usually best to scrap one at a time, wait till its replacement is done building, scrap another, etc. so you still get the benefit of the facilities you're going to replace until you actually get around to replacing them.