Our theme does not support such feature at present. You will have to customize the code to do that. In the header-extensions.php file, search for wp_nav_menu function and changes its position for where you want it. You may have to edit the css accordingly to fit the new position of the menu.
It is bad practice to edit the theme code directly as you will lose the changes when you update the theme. So, better make child theme and make the changes there.