Hi
@Yasein H. Burqan !
It's not there by default, in the past I've used a package like
https://our.umbraco.com/packages/backoffice-extensions/conditional-displayers/ but thats not available for v12.
What you could do, is make use of the BlockList editor where you allow the Normal News and the Special News. But you set the max amount of Blocks to 1.
So the content editor is forced to pick one of them 🙂 Think it should suit your needs?