@Sindi_Ramadani @PatrickMast @ishi8 I still don't have a timeline for a bespoke Footer Frame. But when only one component occupies the canvas you can now toggle an "Expand content to fit" setting on the Main canvas, and that component will fill the screen.
This allows you to effectively wrap your app in a container and therefore use the footer and header of a container for the whole app to more closely mimic a Footer frame. Hopefully this may help to meet your requirements in the meantime!