Page layouts provide structure to your page — two-column, three-column, and more — making it 
easy for everyone in your organization, first-time and power users alike, to create beautiful pages.

1. Edit the page.
2. Click the Page Layout button in the editor toolbar. It looks like this:
    
    
3. Select the Two-Column page layout.
   
   
   
4. Select the Three-Column with Header and Footer page layout.
   
    
5. Use your cursor (or press Ctrl+A or Cmd+A) to highlight all the content in this page layout block.
6. Copy and paste this content into the center and right-hand content blocks.
7. Click Save.