I'm afraid that this is currently not supported, however you can either auto-hide the Ribbon or only show the Ribbon tabs via the button in the top right corner as shown here:
I hope this helps!
cool! That helps a lot more while adding two extra lines.
Thank you! I should have checked this one before.
that's great, glad this helped.
If you need further assistance please let us know.
In the meantime I wish you a nice day!
as I do have to use an ultrabook, I'm searching for "space" everywhere. As I know some browsers for example do this, can I have an option or is there already one for the Ribbon/Menu-Bar moved to the Window-Title-Area?