Is there something I can buy that I can put over my stovetop to turn it into a flattop like a hibachi grill?

I have seen these things you put over your electric stove tops that turns all 4 burners into one flat cooking surface like a hibachi grill. We would like to cook our own hibachi and other items would become way easier on a flat surface. I live in an apartment so replacing the stove top isn't an option. A griddle is too small unless they make huge ones.Is there something I can buy that I can put over my stovetop to turn it into a flattop like a hibachi grill?
Look for cast iron griddles that cover two burners, and buy two.

ON EDIT: Apparently, four burner griddles are made. Google 'four burner griddle', and click on 'Shopping'.Is there something I can buy that I can put over my stovetop to turn it into a flattop like a hibachi grill?
They do make huge ones. I have a Viking range with a center grill that can accommodate a grill platter that is a bit over 2 feet long and 14 inches across. I have 2 banks of burners that could fit 2 more or griddle platters.Is there something I can buy that I can put over my stovetop to turn it into a flattop like a hibachi grill?
I have a cast iron griddle/grill top.