If you’re using the About page template, you’ll notice that the layout is unique, which means you cannot set it up by creating a standard page. If you want to use the About page template, you’ll first have to navigate to Pages -> Add New, create a new page and select the About Us template, and publish the page.
Then, navigate to Appearance -> Theme Options -> About Layout Manager – more details on how to use any layout manager can be found here.
Once you’re done, go to Appearance -> Theme Options -> Who We Are About Page and What We Do About Page
And that’s it. Just make sure you Save All Changes and add your About page to the main menu.