This tutorial for a member shows you how to add a front-page.php file with 4 full width widget areas.
You can add more if you like as long as the widget I.D’s are unique.
There’s 3 code snippets to deal with:
The first step is to create a new file using a code editor like Notepad++ for Windows or Text Wrangler for Mac.
Paste the following code at the very top of the file and save it as a PHP file named front-page.php in your child themes root directory.
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