How to partially display the domain in paraview

Hey guys,

I have a large domain, but I only care about a small part of it, so how to makeParaview only show the small part? I don’t know the number of cells, but only know the coordinate, like if I have a 10m by 10m, I only want to see 1m by 1m of in the window. Or anyone knows a good forum to ask questions about Paraview?

Thank you.