Bigger / Adjustable Form Area
However the form area is too small and you cannot change the size. Other than scrolling up and down, which makes it inflexible.
An adjustable Form area would be really helpful
Finally trying to add textareas to your code is a nightmare as when you open the form it uses a textarea to display the code and it spills out onto the page if you have a <textarea> </textarea> in your form code
Please see attached screen grab