These settings are available when using the GeneratePress Premium plugin.

Header, Logo & Navigation in GeneratePress

You have a lot of options, place the logo (or site title) above or below the primary navigation bar. Place the logo inside the navigation bar. You can adjust the padding around the header area. And you can set hero headers that use a background image.

I also have a page just about navbar settings.

Some useful links when setting the page header and navigation