Adjustable Preview Size
Amazing plugin! Took some time to get the hang of it but now managed to create some pretty amazing fluid grid designs that can easily be resized.

One thing I find myself doing all the time is resizing an artboard height after I preview -> copy it.

The preview works but sometimes looks broken because 1024 x 768 for example is just to short for all the elements to fit nicely. if I copy and paste the artboard and increase the height then update the layout its perfect.

Would be nice if we are able to resize the width only and make the height configurable or automatic. Then previews will always look good and no need to resize after copying.
