The page style annd the settings saving.

Hello,

      I was composing and trying to make different movements and mark them with a big font. I tried to find a good thing in the text palette. But I couldn't find it. So I clicked all around and found the page style and clicked on it. Found the headers thing and messed around with it and I thought what about the file name so then I could change that text box.  So made the changes and I don't know how I did this but it saved and I want to change it back. But when I was doing that I couldn't do that. Because it didn't save the changes no matter what. As I'm composing it's getting quite annoying.