Hi @AndrewWallick, unfortunately there is no way to directly convert a scrolling page to a fullscreen page or vice versa.
But, you do not have to rebuild the page entirely from scratch. If you're in the same app, you can CTRL+C copy and CTRL+V paste widgets from one page to another and they will keep all of their settings. This also applies to any widgets that are in the same container widget, like a Column (If you copy and paste a Column widget you can move all the widgets in the column at the same time and they'll keep all their settings). To make the switch as easy as possible I'd put as many widgets as you can in layout containers and copy and paste those over.
You'll definitely have to do some layout re-designing but you do not have to reconfigure every widget.