The Menu Layout section is found within the Menu Options and enables you to define the layout type of your menu globally within the site.
There are two menu layouts within the theme. You can use either of them within your website. These are:
1) Left
Aligns the menu vertically to the left.
Below is a sample output:
It is also important to note that this is the default option.
2) Top
When selected, this option aligns the menu horizontally to the top.
Below is a sample output: