One page (app) website with multiple floating group headers?

Hi all,

I am creating a one page site ready to convert to native apps, as per this video. The idea is to put all your pages into a reusable element and show/hide as needed.

However, floating groups which are put inside a reusable element do not ‘float’, so I have to put the floating group on the page separately to the reusable element. How can I make my ‘Save’ button reference the form fields if the form is inside a reusable element?