The Add Logical Page dialog box enables you to add logical page to the Logical Layout.

There are two options:

Create New Resource tab

You can create completely new logical page in the logical hierarchy of the site. When creating it, the program automatically creates a new blank physical resource in the physical structure of the site.
Select a Resource type you want and click OK.

Use Existing Resource tab

The tab lists all the pages you have already created in your Physical Layout resource tree. Instead of designing a new page, you can select one that you had designed before and reuse it.
Resources already used in the Logical Layout display semi-transparent since a resource cannot be applied more than once to the logical hierarchy.

To add a new Home Page to the site, right-click inside the Logical Layout but do not select the page. The former home page will become a child to the new one with the entire site structure unchanged.