Expanding and or editing the forms view

I am using a form and i wanted to embed the iframe from one form into another form but the area for forms is very small and the iframe looks small as well. Is there a way to expand that area in the form that has the display ? so i can make it a little bigger?

Also the area that has the box for entering text i dont need but there is no way to remove that as well ? is there a way to customize the forms view?