Hey Pascal,
So you are referring to the Header Bar it seems then.
In that case, yes that option is on my current development list.
Looking at that plugin you are referring to, it should be as easy as in their example, what issue are you having?
// grab an element
var myElement = document.querySelector("responsive-menu-pro-header");
// construct an instance of Headroom, passing the element
var headroom = new Headroom(myElement);
// initialise
headroom.init();
Please advise
Peter