Wikimedia Bugzilla is closed!

I've just tried out this extension - It's pretty cool. I'm reporting a bunch of things that I think could make it even cooler. 

You type in a page in the "page to preview this template with" and hit enter. Instead of triggering a preview as would be expected, this triggers a page save. This is a bit of a usability issue, could cause people to accidentally save works in progress, etc. Enter should trigger the preview not the save if the "page to preview with" input box has focus

The form for previewing with another page could also use some introductory text perhaps to better explain what the button does.