Can't find sticky to top option

Hi there.
I have a section that I would like to stick to the top of the screen from when you scroll past it, however, I can’t find an option like this anywhere.

Does anyone know where I can find this? I can’t turn it into a navbar as that messes with the actual header.

Thanks, Ben.

you write sticky-top as class name in the attributes panel

Thanks, kuligaposten. Just what I needed.