Clouds on my runway?!?!?

I recently purchaced a program by FlightOne called Airport Facilitator X. I have three problems: One, there is a low lying cloud in the middle of my runway :o. Two, there are no center lines on the runways. And three, does anyone know where I can get a tool to flatten the land around my airport? It is fictional. Thanks!
-=Captain_Xion=-
-=Captain_Xion=-