I want to store space centers not launch them!

i want to stock space centers,

but contracting space centers to enterprise just launches them in the sky

how can you stock them?

what do you mean by: launching them in the sky.

Do you mean space centers or Shuttles?

If a country buys a shuttle, it will be stationed at the space center of the country.

you do not "stock" them in a country.

He wants to keep a stock of space centres. Right now when you buy a space center it automatically removes from stock and creates a space center next month. The reason he wants to store them is for corporations that require them as supplies.