Change header to App name instead of page name

I would like the top header navigation element to say the app name regardless of what page it is on. Right now it shows the current page name. How can I change this?

Do the changes on the Navigation tab. Note that You cannot specifically name it with the App name, but can add a static value to that, which in fact could be the app name…

When I change it to a static value it no longer says “back” and says “m-page.Page6” instead. Is there a way to fix that too?

I am not sure, honestly, I barely ever use the built-in navigation…