My knowledge of webpages, webmaking, etc. is extremely limited so the rest of this message should be taken with that in mind (I need a WYSIWYG webpage application to even have a fighting chance...and I must admit that I now have a webpage on Google Pages...)--
Using the new, wonderful auto populate feature is great but I had been using the HTML view to find the form name, form id, etc. which, with my lack of knowledge, was not easy AT ALL.
Then yesterday (known to many other people I'm sure) I found the Tools->Page Info menu option and, WHAM!, there was all the information that I needed without any hassle, humbug, or unnecessary frustrations!
I just thought that it might be useful for other novices to know this so that using the auto populate feature is as easy for everyone as I'm sure it's intended!