Note:
If you are using Divi4, click here to view Adding New Page and Editing with Divi4

To create a page, go to Pages > Add Page. 

Name your page and click Use Divi Builder to enable the Divi 5 visual builder.

You’ll enter the Divi 5 visual builder.

Click on the blue plus button and choose Saved Layout, and choose the template layout from the option on the next stage.

On the next step you will also have the option to duplicate your existing page (2).  This is handy if you want to copy the page to include  the whole content of the page you have edited.

Choose the layout that you wanted to add to your page and then edit it.

Repeat this process for each new page, adding a new layout to each one.

Next:

Working With Sections, Rows & Modules