Multiple Add pages

So far version 10 looks really promising. Thanks Sergey and team!!

I am having difficulty figuring out how to add multiple add pages. On the list page I duplicated add new button to point to add1 page. The url shows add and add1 correctly based on the button I clicked, but the layout on both pages are identical. I have one add page showing fields vertically and the other horizontally. However, like I said, doesn't matter, all I get in the published app are two identical layouts.

Is there a step by step configuration in the help? I can't find it.

Thanks