In Edit Mode,

 the List of pages shows

 all the pages that are within the website. 

The list can be expanded

or contracted by using the  and  buttons.  

With this list, you can click

to any page you wish

to view or edit.

Once a page is selected,

the Page Info gives information that is related to the page. 

Click on the arrow

in the upper right to make this panel disappear or re-appear.

The Legend is a key

to the attributes of the page. 

It shows whether the page

is optional

or required for child sites,

editable or not,

and other properties of the page. 

Click on the arrow in the upper right

to make this panel disappear

or re-appear.