When creating a new page or folder in Cascade, every items needs to have three different names assigned to it: Page/Folder name, Display name and Title name.
The page or folder name shows on the URL. It is recomended to use dashes (-) instead of spaces, avoid using special characters, and use lowecase only.
Change Page/Folder Name
To change the page/Folder Name right click on the page and select rename
On the pop-up window, enter the desired name.
The display Name is the one displayed on screen (e.g. main navigation, sidebar navigation, breadcrumbs)
The title shows in Browser tab, it is used by search engines.
On the page, click on edit.
Change the contents of the "Title" box.
Save and Submit.