The header and footer areas are at the top and bottom of a page respectively. They often display useful information about the score such as the title, file name, page number, copyright details etc.
From the main menu, select Format→Style→Header, Footer:
:
To turn off/on the display of headers/footers, uncheck/check the "Header text" and/or "Footer text" boxes as required.
Hover the cursor over the control area in which you wish to specify text. A popup box appears displaying a list of text options, and which codes to enter to realize them.
Enter the code for the desired text in the control area. A new line should be used for each code snippet.
To create a header or footer for an instrument part, that part should be the active tab.
Note: When you create a new score, any copyright details entered on the Additional score information page of the New score dialog will appear in the footer area of the the first page. Page numbers are also displayed on subsequent pages of newly-created scores. These are default settings only, and can be changed later from the Header, Footer style dialog (above).
Metadata is information about your score file—such as the title, copyright info, file name, number of pages and so on. Each of these snippets is called a metadata tag.
Headers and footers can display metadata tags such as page number, file name etc., as well as tags whose content is shown in Project properties.
If you hover the cursor over any control area in the Header, Footer dialog (see image above) you will see a list of the metadata tags available for entry, and the (two-letter) codes to enter them.
You will notice that code entry for tags is case-sensitive. For example,
If you want to display content from the Project properties window not covered by a two-letter code, you need to enter it in the relevant control area using the format:
Enter the tag name in lower-case letters, unless the name of the meta tag in Project properties consists of two words, in which case the second word should start with an upper-case letter, and there should be no spaces between words.
In the header, footer dialog there are two check boxes for both header and footer:
To fine tune the placement of all header and footer text:
In the same way you can adjust other text properties (font, font-size etc.) from the Text section of the Properties panel.
The same adjustment can be made directly in the "Header" and "Footer" entries at Format→Style→Text styles.
Unlike other types of text, you cannot change the text properties of a single header or footer element wthout affecting all the elements in the score of the same style. This makes sense as you usually want all footer/header elements to have the same text properties.
Style properties of headers and footers are covered in Adding a header or footer to your score (above).
Text style properties are covered in Changing how headers and footers are displayed (above).