I created a website with the following structure :
- webpage 1 (option "Display this page in the webview menu " checked to "No")
- webpage 1.1 (option "Display this page in the webview menu " checked to "Yes" which is the default value)
When I go on the webpage 1, the page name is displayed in the menu.
When I gp on the webpage 1.1, I have "placeholder" displayed in the menu just under the site name.