Is it possible to add a drop down drawer at the top of the Enfold theme?

Hi there,

I’m not sure if this is something simple, but I want to add a drop down drawer/panel to the Enfold theme. Something similar to the style switcher on the demo site, but have it at the top of the page where I can add a log-in form and maybe text to the left side. See this website as an example (this is not a WP site, but this is what I want to accomplish).

Notice the tab at the top where it says ‘Reserved Area”. This is what I want to do. How would I go about this?

Thanks