Scrolling only part of the screen

Afternoon. Sorry if the question is too simple - I've just started studying the service. How can I fix the elements so that only part of the screen scrolls - only List Collection component, and Text Input component always stays on top and is visible when scrolling the list. And the Button component is also visible and always at the bottom of the screen.
Thank you.
Regards, Aleksandr.

Not yet supported but it's on the roadmap! Would love to hear about what you're trying to build though, if you want to share here!