There are two ways to edit Page information in the Portfolio editor.
The first is to click on the pencil icon that appears on the cover image of the Page. Select "Edit Info" from the dropdown menu that appears and you will be able to edit the Page Title, Description, Creative Fields, and more.
The other way is to navigate to the Page and select "Edit Info" from the editing remote.
To select which pieces of info you want displayed on your covers images, select Page Covers from the Gallery remote. You can then toggle info on or off.